MCP servers for game engines
| Tool | Best for | Pricing | Free plan |
|---|---|---|---|
| Astrocade | Non-coders who want to make small casual games and publish them to an existing audience of players | No published price list found on Astrocade's site as of October 2026 | – |
| Audio Studio MCP | Developers using Claude Code, Cursor or another MCP client who want placeholder or final game audio generated on their own machine | Open source (MIT) | Yes |
| Godot MCP | Godot developers who want Claude Code, Cursor or Cline to run their project and read its errors | Open source (MIT) | Yes |
| Roblox Studio Assistant | Roblox creators, from first-timers to experienced developers, who want AI to plan, script and populate a game inside Studio | Roblox Studio is free; Roblox's Assistant docs don't state a price (as of October 2026). You can also add your own Anthropic, OpenAI or Google API key | – |
| Ultimate Engine CoPilot | Unreal Engine 5 developers who want an AI agent to build Blueprints, C++ and levels inside the editor | One-time license $284.99 per seat (bring your own AI); Indie $25/month and Studio $80/month (shown as reduced from $100) with monthly AI tokens; annual billing $250 and $800 a year (as of October 2026) | – |
| Unity AI | Unity 6 developers who want AI help inside the Editor, or who want to drive Unity from Claude Code, Codex, Cursor or another agent | In-editor assistant included in Pro, Enterprise and Industry; Personal users get a 14-day trial, then $10/month. The official plugin, Unity CLI and its MCP server are free (as of October 2026) | Yes |
AstrocadeMake casual games by describing them, then publish
Audio Studio MCPLocal game music and sound effects for coding agents
Godot MCPMCP server that lets AI agents run and edit Godot games
Roblox Studio AssistantRoblox's built-in AI for scripting and building
Ultimate Engine CoPilotPaid Unreal Engine plugin for AI agents in the editor
Unity AIUnity's in-editor AI assistant, generators and MCP
Compiled by AIGamer from each tool's own pages; we haven't tested every tool hands-on. Prices change, so check the tool's site before you buy.