Using the skill agent-sprite-forge, you can directly create a complete game in one shot on Codex. The two examples below were both made in Codex using GPT-5.5 and agent-sprite-forge in just *one go*. All game elements were generated at once, and the game logic was fully built for you. If there are any issues later, you can simply chat with Codex to fix them—whether it’s adding new monsters or any other elements. I still remember two years ago, having to generate images one by one with Midjourney, then slowly remove backgrounds in Canva, and painstakingly write the code bit by bit... The indie game development ecosystem is truly about to be rewritten by Agents.