🎮 claude-code-game-dev

Build games in Unreal, Unity & Godot — with Claude, automatically.

A Claude Code plugin marketplace that teaches Claude to spin up a real game project, install the engine plugin, log you in, and open the editor connected to the cloud — so you can build a game just by asking.

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What is this?

claude-code-game-dev is a marketplace of three Claude Code plugins — one per game engine. Each one teaches Claude Code to drive that engine's official npm CLI so Claude can take you from nothing to a running editor connected to ai-game.dev — creating the project, installing the engine plugin, logging you in, and opening the editor for you, automatically.

Once connected, the AI can build the game inside your real editor: create the project structure, spawn objects, edit scenes, wire logic, and iterate — all through Claude Code.

Engine	Plugin id	Wraps the CLI	It teaches Claude to…
🟦 Unreal Engine	unreal	unreal-mcp-cli	create a UE project, install Unreal-MCP, log in, open in Cloud mode
⬛ Unity	unity	unity-mcp-cli	create a Unity project via Hub, install Unity-MCP, log in, open
🟦 Godot	godot	godot-cli	create a C# Godot project, install Godot-MCP, log in, open in Cloud mode

🚀 Quick start

Add the marketplace, then install the plugin(s) for the engine(s) you use:

/plugin marketplace add IvanMurzak/claude-code-game-dev

/plugin install unreal@claude-code-game-dev
/plugin install unity@claude-code-game-dev
/plugin install godot@claude-code-game-dev

Then just ask Claude:

"Set up a new Unreal game with AI and connect it to ai-game.dev."

The three plugins

Engine	Install command
Unreal Engine	/plugin install unreal@claude-code-game-dev
Unity	/plugin install unity@claude-code-game-dev
Godot	/plugin install godot@claude-code-game-dev

Each plugin is a single, focused skill that auto-activates the moment you ask Claude to create, set up, or open a project for that engine with AI.

🤖 What Claude does automatically

When you ask Claude to set up a game, the skill runs the full end-to-end flow via npx -y <engine-cli>@latest:

1. Create — scaffold a fresh engine project (skipped if you already have one).
2. Install — add the engine's MCP plugin/addon to the project.
3. Close — ensure the editor is not running, so it picks up the new token on next launch.
4. Login — an interactive device-code sign-in to ai-game.dev; Claude relays the verification URL + code for you to open in a browser.
5. Open — launch the editor in Cloud mode.
6. Connect — wait until the editor has actually connected to the cloud (Claude won't claim success until this passes).
7. Wire MCP — register the project's tools with Claude Code so the AI can build the game.

Ordering that matters: the editor is always closed before login, and opened only after a successful login, so the fresh auth token is loaded at startup. Claude enforces this for you.

✅ Prerequisites

• Node.js 18+ (the CLIs run through npx).
• The engine installed — Unreal Engine, Unity (via Unity Hub), or Godot 4.x .NET/Mono (Godot C# projects also need the .NET SDK).
• A free ai-game.dev account for the login step.
• A desktop session — the editors open a real window.

🌐 Powered by ai-game.dev

These plugins are the on-ramp to ai-game.dev — the cloud that lets AI build games inside your real engine. The login step authorizes your project against the cloud, and the editor connects to it so Claude can create and iterate on your game. Bring your own free account; the plugins wire everything else up.

🤝 Contributing

Issues and pull requests are welcome at github.com/IvanMurzak/claude-code-game-dev. Keep changes focused on the create → install → login → open → connect story, keep all JSON valid, and match the existing skill structure.

📄 License

Apache-2.0 © 2026 Ivan Murzak.

_{Made for game developers who'd rather build than boilerplate. · ai-game.dev}