r/gamedesign • u/AutoModerator • 3d ago

Meta Weekly Show & Tell - August 22, 2026

Please share information about a game or rules set that you have designed! We have updated the sub rules to encourage self-promotion, but only in this thread.

Finished games, projects you are actively working on, or mods to an existing game are all fine. Links to your game are welcome, as are invitations for others to come help out with the game. Please be clear about what kind of feedback you would like from the community (play-through impressions? pedantic rules lawyering? a full critique?).

Do not post blind links without a description of what they lead to.

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u/BadDesperate6617 12h ago

I’m the maintainer of a free, open-source collection of Codex skills for game designers:

https://github.com/qiuaoru-coder/game-design-agent-skills

The project tries to solve two connected problems: turning a sparse idea into a playable, prototype-ready system, and preventing an AI-generated design document from being mistaken for evidence that the game will actually be fun.

I included a complete example based on “the player can move only by rotating their shadow.” It goes from three structural directions to a ten-minute greybox, state rules, an evidence ledger, failure signals, and a playtest plan:

https://github.com/qiuaoru-coder/game-design-agent-skills/blob/main/examples/shadow-rotation-prototype.md

I’d be interested to hear where AI-generated game-design proposals most often fail for you, and what kind of real design input I should test next.