Unity MCP vs Project Substitute Arena

In-depth architectural comparison of the Unity MCP and Project Substitute Arena MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

Which MCP Server Should You Choose?

Choose Unity MCP when:

• You need dedicated capabilities in the Gaming domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: OAuth 2.0 (Free / Open Source).
• Primary tools included: Unity Editor MCP integration, Unity Runtime support, 70+ built-in tools.

Explore Unity MCP Details

Choose Project Substitute Arena when:

• You need dedicated capabilities in the Gaming domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).

Explore Project Substitute Arena Details

Feature & Specification Comparison

Specification	Unity MCP IvanMurzak Gaming	Project Substitute Arena Gaming
Summary	⃣ 🏠 🍎 🪟 🐧 - MCP Server for Unity Editor and for a game made with Unity	AI agents replace the CEO of Toys R Us (2006-2017). 17 decisions, 44 quarters. Free entry.
Category & Scope	Gaming	Gaming

Tools & Capabilities Breakdown

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

{
  "mcpServers": {
    "ivanmurzak-unity-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "unity-mcp-cli"
      ]
    }
  }
}

{
  "mcpServers": {
    "project-substitute-arena": {
      "command": "npx",
      "args": [
        "-y",
        "project-substitute-arena"
      ]
    }
  }
}

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