The AI game-modding toolkit from Fixed Seed: skills, the fsgc CLI, a FixedSeed MCP server and a shared knowledge base so any coding agent can mod almost any PC game you own.
View on GitHub ↗Homepage ↗Mod almost any PC game you own with an AI agent. game-changer teaches Claude Code, Codex, Cursor, Gemini CLI and GitHub Copilot to mod a game from start to finish: work out how the game can be modded, read its code, build the mod and prove it works in the running game. With a FixedSeed key it can also make the art, 3D models and sound.
Install · What it can do · Ask for a mod · Two games at once · Field notes · Examples · Art, 3D and sound
You need an AI coding agent, Python 3.10 or newer (uv recommended) and ffmpeg. No account is needed.
In Claude Code, run these two commands, then restart it:
Codex, Gemini CLI, Cursor, VS Code / Copilot, or any other agent
Agent Install ------ Codex codex plugin marketplace add Fixed-Seed/game-changer, then codex plugin add game-changer (or pick it in /plugins) Gemini CLI gemini extensions install https://github.com/Fixed-Seed/game-changer Cursor Paste https://github.com/Fixed-Seed/game-changer under Cursor Settings → Plugins, or clone it and open the folder VS Code / Copilot Turn on chat.plugins.enabled, run Chat: Install Plugin From Source and paste the repo URL Skills only (any agent) npx skills add https://github.com/Fixed-Seed/game-changer Anything else git clone https://github.com/Fixed-Seed/game-changer and start your agent inside the folder
Each one brings the same skills and the fsgc command line (skills only: just the skills).
- Find your installed games and work out how each one can be modded: engine and version, anti-cheat, mod loaders already there, save folders and the community's route (fsgc scan). - Read the game's
From the project README.
Add the radar badge to your README — it shows your project was picked up by MCP Radar and links to this page:
[](https://mcp.liqiwa.com/s/Fixed-Seed--game-changer.html)
Brakes for your AI agents: every tool call is checked against your rules, held for human approval when risky, and recorded in a tamper-evident audit trail. Works with Claude Code and any MCP app.
dongnguyenvie/bashcut-agent-kitBashCut's agent kit: editing skills (footage survey, beat cuts, audio mix, captions, colour, voiceover…) and the BashCut MCP server for Claude Code and Codex.
devsolux/storytoldClaude Code & Codex plugin for the open-source ArtCraft Craft App Suite: one craft Skill drives 12 local, headless Craft MCP apps (photo, vector, video, RAW, PDF, layout, sheets, docs, slides, CAD, au
RuriLothlorien/CCSwitch-operationsPortable CC Switch (CCS) operations skill for Codex / Claude Code: safe management of prompts, skills, MCP servers and providers. 可移植的 CC Switch 操作/维护技能。
thaildhe172591/pythiaPL/SQL development for AI agents on Oracle Database - expert queries, impact analysis, and a snapshot-verified write path with honest rollback
shitianfang/jev-useClaude Code / Codex / pi plugin that hands agent steps needing no text output to Jev (TypeSafe's judgment model) — measured p50 ~230 ms and ~$0.02 per 1,000 judgments, with typed escalation back to th
The top new MCP servers of the week, every Monday. No spam, unsubscribe anytime.