Author: Ryze Labs

I. Introduction: What is a Full-Chain Game?

Recently, the Pass card FOMO of the full-chain game Sky Strife reached 21,000 ETH, which has amazed many non-full-chain game players and highlighted the magic of this track. Since the release of "Pong" in 1972, the gaming industry has been skyrocketing, from classic 8-bit games like "Super Mario" and "The Legend of Zelda" to highly complex and social network games like "Fortnite" and "League of Legends". Games are no longer just simple entertainment, as the social, competitive, and immersive experiences they provide have surpassed our previous imagination.

However, with the rise of blockchain technology and the development of cryptocurrencies, the gaming industry is reshaping our experiences in unprecedented ways. From innovative works like Axie Infinity, which tightly integrates games with the crypto economy, to projects like Stepn, which focus on social interaction and innovation, blockchain games are gradually being seen as a hope for Crypto Mass Adoption. People are beginning to explore new ways to combine games and blockchain, wondering if more elements can be put on the chain beyond just assets. This has led to the birth of full-chain games.

So, what are the differences between full-chain games and traditional games?

In traditional games, all game logic, data storage, digital assets, and game states are stored in centralized game companies. For example, when we play games like "King of Glory," "Genshin Impact," or "Dungeon & Fighter," all game content, including in-game assets, belongs to centralized companies.

Subsequently, asset-on-chain games (commonly known as Web2.5 games), such as Axie and Stepn, put assets on the chain. On one hand, players can own the assets, and on the other hand, it can increase the liquidity of the assets. However, when faced with game closures, game assets still face the dilemma of losing their circulation value. Compared to traditional games, the relationship between asset-on-chain games and traditional games is more of a supplement rather than a replacement, similar to the relationship between takeout and dining establishments. Similarly, Web2.5 games also face competition from Web2.5 games of the same kind and traditional Web2 games.

The recently highly anticipated full-chain game puts all interactive behaviors and states of the game on the chain, including the game logic, data storage, digital assets, and game states mentioned earlier, all processed by the blockchain, thereby achieving truly decentralized gaming.

For ease of understanding, I summarize the characteristics of full-chain games into the following 4 points:

1. The authenticity of data sources is ensured by the blockchain. The blockchain is no longer just an auxiliary storage for data, but the true source of game data; it is not limited to just recording asset ownership, but is the storage center for all key data. This approach fully utilizes the characteristics of programmable blockchains, achieving transparent data storage and permissionless interoperability.

2. Game logic and rules are implemented through smart contracts. For example, various operations in the game can be executed on the chain, ensuring the traceability and security of game logic.

3. Game development follows the principles of an open ecosystem. Game contracts and accessible game clients are open source, providing a broad creative space for third-party developers. They can creatively output content and share it with the entire community through plugins, third-party clients, and interoperable smart contracts, or even redeploy and customize their own game experiences.

4. The game is independent of the client. This is closely related to the previous three points, because the key to truly native encrypted games is that even if the client of the core developer disappears, the game can still continue. This depends on the permissionless storage of game data, the permissionless execution of logic, and the community's ability to independently interact with core smart contracts, without relying on interfaces provided by the core team. This truly achieves decentralization.

II. Why Do Humans Need Full-Chain Games?

Before understanding why full-chain games are needed, let's briefly understand the current situation and operation mode of the traditional gaming industry.

The essence of full-chain games is also games, and it is very important and necessary for us to understand the future of full-chain games by understanding the operation mode of traditional games.

1. Current Situation of the Traditional Gaming Industry

With the development of the gaming industry, many excellent Web2 games have emerged in our growing up process, whether it's FPS games like "Counter-Strike" and "CrossFire," RPG games like "Dungeon & Fighter" and "Dragon Nest," MOBA games like "League of Legends" and "King of Glory," or card games like "Onmyoji" and "Hearthstone." Games have occupied a very important part of our entertainment life as we grow up.

According to Fortune Business Insights, the global gaming market size was $249.55 billion in 2022, expected to exceed $280 billion in 2023, and will exceed $600 billion by 2030. Compared to the film and entertainment industry, with a global market size of $94.4 billion in 2022, it can be seen that as an entertainment and leisure industry, games occupy a very important position in economic development, with many aspects of commercial depth and breadth worth exploring. It can be said to be the crown jewel of the leisure industry.

1) Why Humans Love Playing Games

According to Statista's data, the number of global gamers has exceeded 2.5 billion, approaching 3 billion. So how can games attract over one-third of the global population to participate? The core reason can be summarized as satisfying various human needs and weaknesses:

1. Escaping reality and restarting life: Games provide a place to escape the pressures and challenges of daily life. In games, people can escape the troubles of reality and immerse themselves in a virtual world, having a second life.

2. Social interaction without burden: For multiplayer online games, games provide a platform for social interaction, and are more friendly to social anxiety, allowing players to do what they want without worrying about the gaze of others in real life, thus building relationships with others.

3. Timely feedback rewards: Unlike the daily struggles of students and workers in real life, games are very attractive because they provide a rich reward system and timely reward mechanisms. After putting in effort, leveling up by defeating monsters, and completing challenges, players quickly receive new skills, unlock new levels, or obtain new items. This incentive mechanism can stimulate people's motivation to move forward.

4. Low-cost free exploration: Many games provide rich virtual worlds, allowing players to explore unknown areas, interact with NPCs and other players, drive the development of the plot, satisfying the innate human desire for adventure and exploration. In the real world, due to the constraints of money, energy, time, and geographical location, the cost of exploration is much higher compared to the game world.

5. Pursuit of achievement and self-realization: By completing a series of tasks and goals, people can achieve the desire for success and recognition, whether it's rankings or achievement points, people can more easily achieve self-challenges and character growth in games.

Games can cleverly satisfy different users' needs and preferences, making them play a good role in covering a wide range of people and providing deep immersive experiences.

2) Current Situation and Development of Traditional Games

Next, let's briefly understand the current situation of the traditional gaming industry.

In traditional games, they are roughly divided into Shooter, Adventure, Role Playing, Battle Royale, Strategy, Sports, Puzzle, Action, Simulation, and other game types.

According to Newzoo's data, role-playing and adventure games perform well on PC, mobile, and console platforms, ranking in the top five. Additionally, shooting and battle royale games are very popular on PC and console platforms. The mobile platform is slightly different, with puzzle and idle games also being popular among users.

2. Challenges in the Traditional Gaming Industry

However, the traditional gaming industry currently faces two major challenges: game releases are restricted by licenses, and the high costs before game releases lead to slow recoupment periods and potential hidden costs.

1) Restrictions on Game Releases Due to Licenses

Game licenses refer to specific permits issued by governments in some countries or regions for game releases. This system aims to regulate game content, ensure that games comply with the regulations, culture, and values of the country or region, protect minors from inappropriate content, and maintain social stability.

For example, in Germany, content review for games is strict, especially focusing on content that may have a negative impact on young people. South Korea and Japan have game rating systems evaluated and issued by relevant national agencies.

In China, the impact of game licenses is even more significant. China implements a strict game license system, which is issued by the National Radio and Television Administration. Games need to obtain a license before they can be released in the Chinese market.

After the release of 87 licenses on July 22, 2021, there was a long period of stagnation until April 2022 when a turnaround gradually began. In April 2022, 45 licenses were issued, and more licenses were announced in September and December. However, during the period of license approval stagnation from 2021 to April 2022, only a few large companies survived, and a large number of small and medium-sized game companies faced closure. According to data from the Tianyancha App, more than 14,000 small and medium-sized game companies (with registered capital below 10 million) were deregistered from July to December 2021.

China, as the world's largest gaming market, has over 500 million gamers. However, the license has become a pain point for numerous Chinese companies. Even after the resumption of license issuance, the contraction of licenses or continuous adjustments has become a sword of Damocles for every game project. During the days of waiting for license issuance, countless project parties without funding can be heard sighing about facing closure.

2) High Costs Before Release and the Emergence of Hidden Costs

In the development model of Web2 games, there are upfront costs for human resources and infrastructure during the game development stage, idle time costs during the waiting period for licenses, and only after the release of the license, game distribution, and commercial revenue generation can profit sharing occur.

It is easy to see that a large amount of costs are incurred in the upfront stage. Once there are problems in the development stage, license stage, or user acquisition stage, all the upfront costs become sunk costs. For a medium-sized game, the cost is generally in the millions of dollars. The long and cyclical development and release stages in the early stages make the profit cycle very long, leading to a high risk of achieving expected returns.

3. Breakthrough Attempts in the Web2.5 Game Industry

Faced with these two challenges, Web2.5 games have taken the lead in breaking through. On one hand, Web2.5 games bypass the restrictions of domestic licenses by targeting global users, allowing citizens of the world to play. On the other hand, by issuing NFTs and tokens, they can generate income through liquidity mining at the early testing and launch stages of the game, greatly reducing the financial barriers to game production.

In the breakthrough attempts of Web2.5 games, outstanding games like Axie and Stepn have emerged. Axie's popularity in Southeast Asia has led many people to earn a living through Axie, with income exceeding the average working income in the Philippines. Stepn's "move to earn" model has attracted many non-Web3 users to ask, "How do you play your running shoes? I want to try it too." This has sparked a trend of breaking through the barriers of blockchain games. However, with the collapse of Ponzi's economic model, Web2.5 games have not been able to ignite the same spark as Axie and Stepn.

Builders have also begun to explore different directions. Some are trying to compete in the Web2 market by aiming for AAA titles, but this has led to Web2.5 AAA titles, which need to compete with both Web2.5 games and Web2 games. Another wave of people has decided to turn to full-chain games to explore new possibilities and validate their value. In this emerging industry of Web3, there are always pioneers who want to move forward on a completely new path.

III. Analysis of the Current Status of the Full-Chain Game Industry

The entire full-chain game industry is currently in a very early stage of development, both in terms of game projects and related infrastructure. In the industrial map of the full-chain game field, it can be roughly divided into four categories: full-chain game projects, full-chain game engines, full-chain game chains, and full-chain game distribution platforms.

1. Full-Chain Game Projects

Currently, full-chain game projects are in a very early stage of development. Let's analyze a few full-chain game projects to understand the current status of full-chain games.

In terms of game projects, there are early well-known projects like Dark Forest, as well as recent ones like Loot Survivor, Sky Strife, Imminent Solace, and Loot Royale. Most of the playable projects are still in the testing stage, and the number of playable full-chain games on the market is less than ten. The games are mainly SLG (strategy) oriented, and there are also many new projects trying simulation and management directions.

Since most games are still in the development and unplayable stages, I will mainly introduce a few playable and distinctive full-chain games here.

1) Dark Forest

First, let's take a look at the representative work of full-chain games, Dark Forest. In simple terms, Dark Forest is a decentralized strategy game created on Ethereum using zkSNARKs.

Dark Forest was developed by Brian Gu, a graduate of MIT, under the pseudonym Gubsheep. Some inspiration came from Liu Cixin's science fiction novel "The Dark Forest." Other team members include Alan, Ivan, and Moe. This game project is not financed, but the team's new project, Argus Labs, recently raised $10 million.

Dark Forest is one of the earliest incomplete information games built on a decentralized system. As a space conquest strategy game, players explore the infinite universe by starting their journey on their own planet, discovering and occupying other planets and resources to develop their empire.

The three biggest highlights of Dark Forest: two of which were just mentioned when introducing full-chain games. One is that the game logic, data, and states are all on the chain, and centralized entities cannot control the results of their actions. The other is the freely open and highly combinable game ecosystem: the open-source full-chain game model gives Dark Forest permissionless interoperability, essentially an Ethereum smart contract that any address can interact with, giving rise to a thriving ecosystem of derivative works (plugins) and generating a lot of interesting UGC in the ecosystem.

(Source: MarrowDAO Official Twitter)

Additionally, a major highlight of Dark Forest is the use of zk-SNARKS technology for information hiding. For strategy games, if all information is transparent, opponents will know one's position, making it impossible to implement strategic confrontation in a fully open and transparent environment. Dark Forest uses zk technology to hide most of the universe and opponents when players first enter the game. They only become visible when players explore the hidden areas. Each time a player moves, they send a proof to the blockchain to validate the move without revealing their coordinates in the universe.

Since the official v0.6 version Round 5 ended in February 2022, Dark Forest has not opened a new round of game versions. The game is currently in a "let it be" state, and those interested in experiencing the game can participate in rounds organized by community organizations, such as creating a small universe in the Arena system developed by dfDAO.

Overall, Dark Forest has redefined the possibilities of Web3 games. Many people praise "The Dark Forest" as a perfect example of the intersection between games and cryptography, inspiring many subsequent full-chain game projects. According to previous reports, the total number of historical players has exceeded 10,000+.

However, the significance of Dark Forest is not only in the game itself. As the first highly anticipated full-chain game, it is more like a spiritual totem of full-chain games, allowing industry builders to discover that there are so many freely open combinable gameplay and a thriving derivative ecosystem based on full-chain games. This has given people a stronger confidence in the possibility of achieving "Autonomous Worlds."

After creating Dark Forest, the Dark Forest team and several other teams formed 0xPARC. The sub-project Lattice discovered that the existing development costs for full-chain games were extremely high. Therefore, in 2022, they started the MUD project to develop a user-friendly full-chain game engine based on the ECS framework, aiming to solve issues such as contract-client state synchronization, continuous content updates, and interoperability with other contracts, thereby lowering the development threshold and greatly promoting the development of full-chain games. In a sense, Dark Forest is a huge symbol and booster for the full-chain game industry.

2) Loot Survivor

Next, let's take a look at Loot Survivor, a game developed by the BibliothecaDAO team, which is an important part of the Loot ecosystem.

Loot was released on August 28, 2021, by @Dom Hofmann. Unlike common PFP-type NFTs, such as BAYC and Crypto Punks, each NFT of Loot is white text on a black background, and the interpretation of these texts is very open and community-driven. This characteristic has attracted a large number of ecosystem contributors and related derivative projects.

Loot Realms has been dedicated to the development of the Lootverse since its launch on September 1, 2021. Core contributors @lordOfAFew and @TimshelXYZ played important roles in this project, building the underlying narrative of Loot and presenting a narrative gamification through Realms' first project, Eternum.

The team proposed the core concept of "Play 2 Die" in February 2022, initially planned as an expansion of the Realms series called "Realms: Adventurers." However, during the iterative development process, the team decided to quickly launch a smaller single-player full-chain game, giving birth to Loot Survivor.

Loot Survivor is a text-based dungeon or roguelike game. It made its first appearance at the full-chain game summit in Lisbon on May 25, 2021, and received significant attention.

The overall gameplay of the game is relatively simple, involving monster fighting through text interaction until death, and it aims to challenge players continuously through a leaderboard.

Overall, the game has a small scale and playability, inheriting the gamified narrative of the Loot ecosystem. As one of the flagship projects in the Dojo engine ecosystem, it has also given a boost to the Dojo engine ecosystem and the Starknet ecosystem.

3) Imminent Solace

Imminent Solace is a recently launched battle royale-style chicken-eating game based on the ZK War Fog and developed on the Mud engine. The project team is developed by PTA DAO, a Chinese team that is very focused on full-chain games. It integrates PVP looting, autonomous world exploration, and PoW resource mining. The gameplay is similar to Dark Forest, but with higher ease of operation and user experience.

The ultimate goal of the project is to create a war simulation game similar to EVE, where players will bear real losses in resources and assets during gameplay, facing strategic challenges.

Imminent Solace is one of the relatively playable games among the recent full-chain games, with good game interaction and experience.

Additionally, there are other games exploring the path of full-chain games, such as Sky Strife developed by Lattice, OPCraft, the text game Word3 by SmallBrain, the Web3 version of Werewolf Framed, and battle royale game Loot Rayale, as well as management game Genki Cats. Most of these games are still in the testing stage, and currently, there are only a few playable games in development.

Research has found that current full-chain games are mostly web-based, with almost no PC or mobile versions.

● On one hand, this is related to the characteristic of full-chain games not requiring a client. Since full-chain games can have multiple front ends, the most important thing for project parties is to quickly create an MVP version for the community and users to play. Web development is faster and cheaper than PC and mobile development, making it the optimal or even the only choice for many.

● On the other hand, full-chain games are still in the concept verification stage, and the key is to quickly create playable games to validate their value.

2. Full-Chain Game Engines

Before understanding full-chain game engines, let's first understand the core essence of engines:

In simple terms, it's like standing on the shoulders of giants to see the world. Game engines integrate common functions used in game development into universal code, so that subsequent creators don't need to reinvent the wheel when creating games.

For example, in traditional game engines like Unity and Unreal Engine, game developers can directly use existing engines to focus their efforts on developing differentiated game content, such as the motion laws after a universe explosion or the motion trajectories between characters after collision.

Similarly, the goal of full-chain game engines is to achieve a similar purpose. Compared to traditional game engines like Unity and Unreal Engine, which can handle tasks such as graphics rendering, physics simulation, and network communication, full-chain game engines, due to the nature of their games, focus more on issues such as contract-client state synchronization, continuous content updates, and interoperability with other contracts.

Currently, full-chain game engines include Mud, Dojo, Argus, Curio, and Paima, among which Mud and Dojo are the most mainstream full-chain game engines, establishing a dual dominance in the EVM-compatible ecosystem and the Starknet ecosystem. Here, we will mainly introduce these two game engines.

Mud

Mud is the first full-chain game engine officially released by Lattice in November 2022. The Mud team, Lattice, and the full-chain game pioneer Dark Forest are both part of the OxPARC team. As the earliest full-chain game engine, Mud currently has the most developers in its ecosystem. In addition to the earliest Dark Forest, projects like OPCraft, Sky Strife, Word3, and the recent Imminent Solace have also emerged, making it the full-chain game engine with the most developers at present.

Dojo

Dojo emerged from the Starknet ecosystem and was initially developed around MUD in the Starknet's Cairo language. It was officially released in February 2023. The core developer tarrence.eth's enthusiasm for the Cairo language is evident in his statements, as he believes that compared to the Solidity language, Cairo has greater advantages in proof recursion and step-by-step proof.

However, another core developer, Loaf, indicated that the decision to create a Mud-like engine on Starknet was not because Mud was inadequate, but because Loaf wanted to build an ECS system on Starknet and chose to fork MUD for this purpose. Similarly, some other Layer1/Layer2 projects have also started forking their own engines to develop their full-chain game ecosystems, such as Move and Flow. Essentially, this is to promote the prosperity of on-chain ecosystems and choose to build the infrastructure for building full-chain games.

The Dojo ecosystem is backed by the large IP of the Loot ecosystem and has seen many impressive projects, including Loot Survivor and Loot Realms: Eternum. Additionally, there are other notable projects such as Dope Wars and Influence.

Just as traditional game engines have played an important role in promoting the development of the gaming industry, the rise of full-chain games is closely related to the emergence of full-chain game engines. These engines allow developers to create game works with lower costs. The emergence of Mud and Dojo has driven the development of the entire full-chain game track, with events like the ETHGlobal Hackathon, Pragma Cairo 1.0 Hackathon, and Lambda zkWeek Hackathon in May, June, and July, continuously nurturing the development of full-chain games.

3. Full-Chain Game Chains

In the field of game-specific chains, compared to the previously popular game-specific chains in Web2.5 games (not listed one by one), current full-chain game projects prefer to build on some general Layer2 solutions such as Arbitrum Nova, Optimism, and Starknet.

The fundamental reason is that the user profiles of the previous game-specific chains were mainly players who enjoyed playing Web2.5 chain games and AAA-type games. These players are not very interested in the relatively simple and rough content of full-chain games. This has resulted in the so-called game-specific chains not being very attractive for full-chain games.

Additionally, it is worth noting that CaptainZ mentioned a contradiction in the current full-chain game deployment: the contradiction between the push-based nature of blockchain and the loop-based nature of games.

Many blockchains are event-driven and passively trigger updates, only updating the state when new transactions or operations occur. In many existing applications, many tracks are very compatible with this framework. For example, in the DeFi track, when a user wants to trade two tokens on Uniswap, the trade is executed after the user submits the transaction, and this process is event-driven. Similarly, many social platforms are event-driven. For example, when you post a tweet on Twitter, the tweet is published for others to see, which is similar to the event-driven nature of blockchain.

However, many traditional game architectures are loop-based (except for some asynchronous games such as turn-based and board games). Game systems actively handle user input, update game states, and render game worlds in each loop, known as a Game Loop or Tick. Many games may require several tens or even hundreds of ticks per second to ensure continuous gameplay.

This natural contradiction between game logic and current blockchain logic poses a challenge. In response to this situation, some teams have started to build proprietary chains specifically for full-chain games, also known as Ticking chains.

For example, the Argus team is building a new Layer2 based on Polaris (an EVM module compatible with the Cosmos SDK), which is a ticking chain with precompiled ticking functions, called World Engine. Curio is also building a new Layer2 based on OPStack, also with precompiled ticking functions.

Although still in the development stage, there is great anticipation for the emergence of new roll-up constructed chains specifically for full-chain games, which is believed to further drive the development of full-chain games.

4. Full-Chain Game Aggregators/Publishing Platforms

Finally, let's also introduce the emerging full-chain game aggregators/publishing platforms. Currently, due to the very early stage of full-chain games, the number of playable full-chain games on the market is extremely limited. According to data from Composable Hub, including alpha, beta, and fully launched games, the number of playable games does not exceed 30.

Therefore, for full-chain game players, finding full-chain games currently relies mainly on word of mouth and some small community dissemination, without the presence of many aggregators to help users explore and choose, as seen in mature tracks like DeFi and GameFi.

Currently, there are mainly two platforms dedicated to full-chain game aggregation: Composable Hub and Cartridge.

Composable Hub

Composable Hub is a full-chain game aggregation platform under Composablelabs, which also operates the Web2.5 GameFi aggregation platform Klick and the NFT DEX Lino Swap.

Currently, Composable Hub aggregates 56 full-chain games, with 14 fully launched games, 12 in the testing phase, and the remaining 30 games still in development.

(Source: Composable Hub)

Cartridge

Cartridge is a full-chain game aggregator in the Starkware ecosystem, aiming to create a Web3 Steam. It currently aggregates 5 games from the Starknet ecosystem: Dope Wars-Roll Your Own, Influence, Loot Survivor, Briq, and Frens Land.

Additionally, the Cartridge team has been actively promoting the development of the Dope Wars-Roll Your Own game and is also the core contributing team for the Dojo engine.

(Source: Cartridge)

4. Core Advantages of Full-Chain Games

In general, full-chain games make games more fair by putting game logic, state, data storage, and assets on the chain. Additionally, because game contracts and accessible game clients are open-source, they provide a broad autonomous space for third-party developers, allowing games to have more community and third-party developed rules and gameplay.

This openness allows games to transition from a binary model where game companies are providers and players are consumers to a new model where every player can become a builder and creator of the game.

1. From PGR to UGR, Giving Everyone the Right to Be a God

In traditional games, all game content is provided by the official company. Whether playing games like Honor of Kings, Genshin Impact, Fortnite, or Overwatch, we are all participants in the PGC (Professional Generated Content) model. Of course, we have the right to create content, such as creating derivative works around game content, but this creation does not involve the core rules and gameplay. We can only consume game rules rather than create them. For players who desire to create, this is a kind of shackle. In the real world, humans always desire the right to be a god, the right to UGR (User Generated Rules), whether it's through novels, movies, or games.

Most traditional games are not willing to make open attempts due to considerations such as business models, security, and stability. However, in many games, some projects are transitioning to openness and PGR, using mods to allow other developers to develop game content outside of the official game. The most well-known example is Minecraft, which allows players to create and run their own game servers. Third-party developers can implement custom game modes, rules, and content, creating gameplay different from the original game, including Minecraft Battle Royale and even online graduation ceremonies during the pandemic.

Although Minecraft allows users to create multiple servers for game modes, these new servers are isolated from each other and do not interconnect. The data accumulated by players in this gameplay cannot be circulated in new gameplay servers. This kind of UGR is limited to one's own small universe, rather than a shared universe.

The difference with full-chain games is that they share the same backend, and the interaction of different mods and smart contracts only affects the frontend, allowing data to be shared and circulated across different clients.

Full-chain games, with their game logic and rules on the chain and support for permissionless interoperability, allow players to freely build and create various game features and experiences. These possibilities greatly enrich the content and functionality of games, such as trading markets, embedded games, custom clients, etc., making the gaming experience more diverse and achieving the transition from PGR to UGR.

This also reminds me of the collective creation of the virtual world Jiuzhou by Chinese online writers Jiang Nan, Jinhe Zai, and Dajiao, which created a vast world through collective storytelling, spanning from literary works to film, games, and other industries.

In fact, in our lives, full-chain games are very similar to playing cards. Playing cards themselves only have fixed suits and numbers, but people have developed various gameplay, such as Landlord, Texas Hold'em, Tractor, Upgrading, Nervous Hearts, and Golden Flower, demonstrating the diversity and flexibility of game rules. Full-chain games are similar in that they allow players to build various game experiences on the basis of basic rules. In traditional games, everyone can only be a game consumer, but in full-chain games, people can be game rule makers.

In summary, the advantages of full-chain games lie in their openness and permissiveness, giving players greater creativity and freedom to participate in the creation of game rules and content, thereby forming a diverse, personalized, and vibrant game ecosystem.

2. Fairness and Transparency, an Unmanipulated Gaming Environment

Another major advantage of full-chain games is the transparency of their game logic and rules after being put on the chain.

Especially for games of chance and gambling, fairness and transparency are crucial.

Just like in the popular movie "Uncut Gems," the gambling apps used by players are controlled by centralized companies, and all results may not be random but predetermined. For card games like Poker and Golden Flower, the lack of transparency in game processes and states can lead to countless players feeling cheated, which is one of the reasons why many Web2 money-based gambling games are widely criticized.

The transparency of game logic and rules in full-chain games ensures the openness and transparency of rules. Combined with some encryption technologies (such as the war fog game Dark Forest and Imminent Solace combining ZK-SNARK), game types that require fairness can achieve an experience that is difficult to achieve in Web2 and Web2.5 games.

5. Challenges and Limitations of Full-Chain Games

As the infrastructure continues to improve, the wind of full-chain games has begun to blow. However, despite some unique highlights, there are still many limitations and challenges that full-chain games need to face.

1. Poor User Experience

Overall, players of full-chain games have a consensus that the playability of current full-chain games is generally much worse than that of Web2 and Web2.5 games. On the one hand, most full-chain games currently have relatively primitive or rough graphics, and on the other hand, there are the following four challenges in terms of interactive experience:

1) Difficult Start: Difficult to Match with Players

For multiplayer PVP games, it often requires 4 players to play together. However, due to the limited number of players in full-chain games and the low number of players online, often not exceeding single digits, and the lack of a matching mechanism, many multiplayer games can only be played by creating private rooms and inviting players, leading to a loss of interest in the game at the beginning.

2) Authentic or Non-Authentic: High Artificial Barriers in Some Games

In addition to the game experience, many games also set many artificial barriers, such as some games that can only be played at specific times, some games that require an entry fee before playing, such as buying certain tokens or NFTs. This increases the cost of playing for players.

Some game developers maintain the spirit of independent game developers and believe that paying for games is the most authentic belief. However, at least Web2 independent games have some innovative gameplay or high-quality content to attract players.

However, faced with the low playability of most full-chain games, why would users be willing to spend money to play a game that they wouldn't even want to look at in Web2? To some extent, this reinforces the stereotype that many full-chain games are often self-indulgent. Apart from a few individual project teams and believers, how many people are really willing to play? Many players are willing to play test versions of games out of love, and the behavior of these project teams is somewhat discouraging for players.

3) Poor Game Experience: Frequent Bugs

For players, what full-chain games need most is faith, followed by patience.

From PC to mobile, the overall development of games is moving towards more convenient ways.

In full-chain games, it is common for a group of players to agree to play together and often encounter bugs most of the time, whether it's page refreshes or sudden error messages. It can be difficult for impatient people to complete the entire experience of a full-chain game.

4) Loud Thunder, Small Rain: Grand Narrative, Low Playability

Most current game projects have a grand narrative but low actual playability. Many games are more difficult to play than web games from ten years ago. With the improvement of infrastructure and more developers joining, it is hoped that the playability of full-chain games can gradually narrow the gap with Web2 games.

2. Limitations of Game Types

Due to the current limitations of blockchain performance and infrastructure, not all game types are suitable for full-chain games.

From the current types of full-chain games, SLG (strategy) games are predominant, with lower real-time requirements. RPG, AVG, ACT, and MOBA game types have high demands for continuous, real-time state updates. If all data is on the chain, the current blockchain performance still struggles to support real-time requirements, making these game types not very suitable for full-chain games.

Full-chain games currently mainly develop in two directions: one is the small and beautiful route, accumulating users through playable MVP versions, such as simulation, pet raising, tower defense, and other lightweight playable game types. The other is the grand narrative, open-world route, creating an imaginative ecosystem through grand worldviews and cosmic narratives. However, due to the limitations of game types, it is mostly limited to the above game types. How to create a game that breaks the mold like the next Axie or Stepn still requires our collective exploration.

3. Genuine Demand or False Demand

The biggest challenge and controversy surrounding full-chain games currently come from whether the demand is genuine.

Taking the two core advantages of full-chain games as an example:

1. From PGR to UGR, on the one hand, many open Web2 games can achieve this, such as Minecraft. On the other hand, there is a question mark regarding whether server data needs to circulate in different game clients. For example, whether mounts, level 90, and flying wings in an RPG client need to circulate to a MOBA game, the necessity still needs to be explored.

2. Fairness and transparency, currently mainly reflected in gambling games. However, on the one hand, the number of online gamblers is far less than offline gamblers (120 million participating in online gambling in 2023, while the global gambling population is approximately 4.2 billion annually). On the other hand, for true gamblers, what they care about most is the convenience of deposits and withdrawals. Compared to fairness, gamblers are more concerned about the speed of fund and chip exchanges, and whether the experience is convenient. With significant differences in full-chain game infrastructure, this is a major weakness of current Web3 games.

Surrounding the two major features of full-chain games, UGR and fairness, if there are some categories in the future that can make good use of these two features, perhaps it can address the genuine demand of game players and attract more participation. However, as of now, the road ahead is still long.

4. Completely Decentralized Games Are Not Necessarily Fun, and May Cause Chaos Instead

Like a coin's two sides, the other side of openness is chaos. Due to human nature being lazy, for players who only want to consume and not create, those accustomed to the traditional PGR mode are most concerned about the playability of the game.

It is difficult for true game designers to delegate game content to others because each user's abilities are different. Ordinary players may design games from their own perspective, making it difficult to grasp the playability and balance of the game.

Whether professional matters should be left to professional game developers or given to everyone is a very worthwhile real-world issue to explore. Balancing democracy and elitism is a challenge.

Therefore, for the development team of full-chain games, it is crucial to have interesting and stable core gameplay, while leaving space for players to create and extend new gameplay. Achieving balance is important. Otherwise, it is easy to fall into the extremes of overly centralized games or games that are too hollow to attract players to participate in creating new gameplay.

For the full-chain game team, playing the role of the "initial god" and designing the core gameplay of the game well, and attracting more players to collectively create and enrich this game world through reasonable incentive mechanisms, is crucial.

VI. Extended Thoughts on the Business Model of Full-Chain Games

Finally, let's explore the topic of the business model of full-chain games, which is of great concern to both project teams and investors.

First, let's analyze the business model of traditional games. The commercial evolution of traditional electronic games has gone through several stages, constantly changing with the development of technology, market changes, and the evolution of player needs:

1. 1970s: Coin-operated Mechanism

○ The earliest consumer-oriented electronic games can be traced back to arcade games in the 1970s and 1980s. During this period, due to the hardware requirements for running electronic games, each game was placed in independent physical devices, including games like Pac-Man and Galaga, and players inserted coins for game time or lives.

2. 1980s: One-time Purchase

○ Early electronic games were mainly console games, sold through retail channels, where players purchased physical game cartridges or discs. This was a product sales-oriented era, where players bought the game once and could play it.

3. Mid-1990s: Subscription Model

○ With the popularity of the internet, multiplayer online games began to rise. Some game companies introduced subscription services, where players had to pay a monthly fee to access game servers. A representative example is "World of Warcraft."

4. Mid-2000s: Ad-based Model + Item Sales

○ Free game modes emerged, where the game itself was free, but players could purchase virtual items or in-game currency to obtain additional items. At the same time, some games used an ad-based model to generate revenue by displaying ads in the game.

5. Early 2010s: Item Sales Model

○ With the popularity of smartphones, mobile games became mainstream. In-app purchases became a major revenue model, where players could buy various items within the app to unlock features or accelerate game progress.

6. 2020s: Cloud Gaming Subscription Model

○ Recently, cloud gaming has also entered people's field of vision, where players can stream games from cloud servers without downloading and installing. At the same time, some game subscription services such as Xbox Game Pass and PlayStation Now have begun to emerge, allowing players to access a range of games through subscription services.

These changes in business models reflect the continuous adaptation and innovation of the electronic game industry to technology, market, and player needs. Similarly, the evolution of business models has to some extent also influenced game design, development, and player experience.

With the advent of GameFi, from Axie to Stepn, the business models mainly include the following categories:

1. In-game Economic Systems: Most GameFi games have established their own economic systems, using tokens, NFTs, and in-game assets as value media. Players can obtain virtual assets through game activities, which have value within the game and can be exchanged for real-world currency. For example, in the well-known game Axie Infinity, players raise virtual creatures (Axies) to play the game. These Axies are NFTs, and players can trade, sell, and earn cryptocurrency rewards within the game.

2. Play-to-Earn Model: Players earn income by participating in the game, which can be in-game currency, tokens, or other rewards of actual value. For example, after joining a game guild like YGG, players can earn income by participating in games like Axie Infinity and receive incentives and loans from YGG.

3. Integration of DeFi and Financial Products: Some GameFi integrates DeFi elements, providing services such as loans, liquidity mining, and trading. Players can use DeFi products in the game to earn income or make investments. For example, in Decentraland, players can buy virtual land and create their own buildings, which can be used for investment or trading, and the value of some land can appreciate in the virtual world.

And for full-chain games that are still in the very early stages, the choice of which business model to adopt is still being explored by the project teams of full-chain games. However, from the characteristics of full-chain games, the future of full-chain games must focus on playability rather than DeFi. Simple Ponzi schemes are finding it increasingly difficult to attract experienced users.

The business model of full-chain games should better integrate its own characteristics to enhance playability. Future business models can be roughly divided into three directions based on the type of game:

1. For lightweight games like simulation and pet raising: consider using a token charging method with NFTs, where it's free to play but paying is required to become stronger.

2. For open-ended narrative grand games: if the playability is high, consider setting up payment thresholds and related subscription and membership models similar to independent games. However, in cases where the initial playability is generally low, consider first adopting a business model similar to lightweight games to attract users to play.

3. For card games: the business model can refer to the commission-based model in traditional/offline modes.

However, the entire full-chain game is still in the stage of exploration and value validation, and it is also expected that more interesting models can emerge and become the next mass adoption.

VII. Conclusion

Overall, the gaming industry has evolved from its birth to its integration with blockchain over several decades. Humans are not satisfied with just being consumers of PGR games, but also have the desire to become creators of UGR.

Just as the birth of Dota originated from the custom map community of "Warcraft III: The Frozen Throne." This map editor allowed players to create their own maps, one of which was "Dota." From the creation of Dota by Eul, to Guinsoo taking over the game's development and adding new heroes, items, and mechanics, to IceFrog introducing a series of updates and improvements, enhancing the game's balance and depth, and introducing more heroes, skills, and tactical elements, Dota has gained widespread recognition and success, leading to the release of DOTA 2 in collaboration with Valve Corporation, which has achieved tremendous success globally.

The developers of the Warcraft map editor may not have anticipated the emergence of a globally renowned game like Dota and the fervent popularity of MOBA games. On the road of user creation, it often takes time and opportunity to give birth to new blockbuster products.

The same is true for full-chain games. In this pioneering era, there are still many drawbacks such as poor user experience and low playability. To achieve mass adoption, it needs to address the challenge of user acquisition. To attract more Web2 players, it is unavoidable to overcome the barrier to entry into Web3, such as registering a wallet, learning to purchase NFTs, buying tokens, etc., which comes with a high learning curve and has become a roadblock for all Dapps. Even though the account abstraction and the built-in exchange in Web3 projects have simplified the difficulty of entering the game and depositing funds, the biggest problem still remains: what demand does full-chain games actually meet for game players?

Narrating for the sake of narration, and going on-chain for the sake of going on-chain, ultimately is like holding a hammer and looking for nails. How to make good use of the UGR and fairness of full-chain games is a question that every full-chain game builder cannot escape. The unique characteristics of full-chain games not only provide fairness (for example, the recently launched non-full-chain game Fren Pet, if the daily roulette function is executed on-chain, it will achieve more fairness, to some extent reducing users' impression of it being a "financial scheme"), but also provide a new journey for games to transition from PGR to UGR, allowing every user to have the potential to become a god.

The development of Web3 cannot escape the wealth effect, and the essence of games cannot escape playability. How to combine the wealth effect and playability still requires a longer-term exploration. Looking forward to continuous exploration in the full-chain game track, and truly emerging game projects that leverage the characteristics of full-chain and solve genuine needs. Also, looking forward to the emergence of new universes in the open ocean of full-chain games on the road ahead.

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