By agent
Gemini CLI Skills for Game Development
Gemini CLI reads skills in the standard SKILL.md format from .agents/skills/ in your project.
126 free skills, MCP servers and kits
How to install skills in Gemini CLI
npx skills add <owner/repo> --skill <name> -a gemini-cliPuts the skill in .agents/skills/ in your project. Replace owner/repo and name with the values on the skill's page.
Some game dev kits here also ship as Gemini CLI extensions; their pages show the gemini command when the author documents one.
Best game dev skills for Gemini CLI
MCP for Unity (CoplayDev)
A bridge between AI assistants and the Unity Editor: manage assets, control scenes, edit scripts and automate tasks.
Universal Modder
Skills, tools and a fal MCP that let Claude Code mod PC games you own: recon, reverse engineering, generated assets, in-game testing.
Awesome Gamedev Agent Skills
74 portable SKILL.md skills for Godot, Unity, Unreal, Phaser, PixiJS, three.js, Bevy, pygame, LÖVE and Roblox, with a router.
Unity Skills (official)
Unity's own collection of skills for AI coding agents: prompts, slash commands and tools built for Unity workflows.
AI Game Developer (Unity-MCP)
AI skills, MCP tools and a CLI for Unity: a full develop-and-test loop, with any C# method exposable as a tool.
Roblox Studio MCP
Create agentic AI workflows in Roblox Studio: a Studio plugin plus an MCP server for Claude Code, Codex and Gemini CLI.
Aseprite AI Artist
Your coding agent paints pixel art in the Aseprite window you already have open: draws, checks its work, animates and exports.
Blender Agent Skills
Professional Blender 5.2 workflows as Agent Skills: modelling, UVs, PBR, baking, rigging, animation, export and QA.
skills-gamedev (Skillary)
26 game development skills from the Skillary catalog: game design, level and narrative design, monetization, playtesting, Unity, Unreal, Blender, audio and engineering.
2D Platformer
Build a 2D platformer: run/jump control with coyote time, jump buffering, and variable jump height, plus tiled levels and hazards.
Behavior Trees & Utility AI
Build a behavior-tree runtime and a Utility AI system with response curves, plus hybrid agents where the behavior tree drives utility scoring.
Bevy ECS
Structure a Bevy app around ECS: plugins, components and resources, systems with Query and Commands, system ordering and Time.
How to use a game dev skill
Three steps in Claude Code, Codex, Cursor or any agent that reads SKILL.md.
- 01
Install it
Run the command on the skill's page, or copy the install prompt and let your agent run it.
- 02
Ask in plain words
Describe what you want. The agent loads the skill when your request matches, or you can call it by name.
- 03
Review and play
Run the game, read what the agent changed, and ask for fixes in the same session.