by wellingfeng
FreeUltraCode - AI coding agent for game development: engine workflows, gameplay code, and asset generation.
# Add to your Claude Code skills
git clone https://github.com/wellingfeng/FreeUltraCodeGuides for using ai agents skills like FreeUltraCode.
FreeUltraCode is an open-source ai agents skill for AI coding assistants such as Claude Code, Codex CLI, and ChatGPT, built by wellingfeng. FreeUltraCode - AI coding agent for game development: engine workflows, gameplay code, and asset generation. It has 177 GitHub stars.
FreeUltraCode's catalog security scan is still queued. You can run an instant dependency and prompt-injection check now with the "Scan for vulnerabilities" button above.
Clone the repository with "git clone https://github.com/wellingfeng/FreeUltraCode" and add it to your Claude Code skills directory (see the Installation section above).
FreeUltraCode is primarily written in TypeScript. It is open-source under wellingfeng on GitHub, so you can review or fork the full source.
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[!IMPORTANT] Community · 加入社区 — join the FreeUltraCode Discord or QQ group for setup help, model routing ideas, and contributor coordination. Discord: https://discord.gg/2C9ptSEFG · QQ Group:
149523963
AI is now good enough to write most of the code on its own. In practice the programmer's role is shifting toward describing intent, verifying output, and orchestrating agents. But a game is not just code. A game engine is full of materials, blueprints, terrain, sky, UI, skeletal animation, packaging, and performance tuning — and most general coding agents have no idea what any of that means.
FreeUltraCode takes a Claude Code / Codex / Gemini style agent and customizes it deeply for game development:
Every asset type a game needs can be generated from the same chat surface and applied to your project, then handed back to the coding model — all in one session history. Each generator runs through your configured provider.
| Asset | What it makes | Enter mode |
|---|---|---|
| Images | Concept art, UI mockups, icons, posters, textures, references | /image, /img, /draw, /生图, or /image-mode-start |
| ComfyUI graphs | Node-based, editable image pipelines | /comfyui-mode-start |
| 2D sprites | Game sprites, sequence frames, spritesheets | /sprite or /sprite-mode-start |
| 3D models | Props, characters, scene meshes, blockouts | /mesh-mode-start (search the library with /mesh-search) |
| Music | BGM, score, music clips | /music or /music-mode-start |
| Speech | Voice lines and narration | /speech-mode-start |
| Video | Video clips and motion assets | /video or /video-mode-start |
The agent first polishes your prompt, sends it to the configured provider, and shows the result in the chat stream with the prompt and provider details. Leave any mode with its matching *-mode-end command.
FreeUltraCode ships a roster of 40+ game-development specialists that the agent can draw on automatically based on the task:
Configure the active engine, council mode, and which experts are enabled in Settings.
Current default coding-oriented models:
| Channel | Default model |
|---|---|
| GitHub Models | openai/gpt-4.1-mini |
| Hugging Face Router | deepseek-ai/DeepSeek-V4-Pro |
| SambaNova Cloud | DeepSeek-V3.1 |
| Together AI | Qwen/Qwen3-Coder-480B-A35B-Instruct-FP8 |
| Kilo Gateway | poolside/laguna-xs.2:free |
| LLM7 | codestral-latest |