AgentIndex icon
AgentIndex
STS2MCP logo
STS2MCP
★ 526
vs
unity-mcp logo
unity-mcp
★ 15.3k

STS2MCP vs unity-mcp

STS2MCP: STS2MCP is an experimental research mod for Slay the Spire 2 that enables AI agents to play the game. It exposes game state and actions via a localhost REST API, with an optional MCP server for Claude Desktop/Claude Code integration. It supports both singleplayer and multiplayer co-op, and has been tested against STS2 v0.99.1.; unity-mcp: MCP for Unity integrates AI assistants like Claude and VS Code Copilot with the Unity Editor using the Model Context Protocol. This allows developers to use Large Language Models to manage assets, control scenes, edit scripts, and automate various tasks within Unity, streamlining game development workflows.

01

TL;DR

STS2MCP logo
STS2MCPDev Tooling · ★ 526

AI agents autonomously playing Slay the Spire 2

Read STS2MCP full review →
unity-mcp logo
unity-mcpDev Tooling · ★ 15.3k
When to choose:
  • You develop games in Unity and want AI assistants (Claude, Cursor) to manage assets, inspect hierarchy, edit C# scripts, and run Editor commands via MCP.
  • You want to automate scene setup, prefab creation, and repetitive Unity Editor tasks using natural language.
When to skip:
  • You use Unreal Engine or Godot; unity-mcp connects strictly to the Unity Editor.
  • You only write gameplay C# logic outside of Unity and do not need Editor-level RPC integration.
Read unity-mcp full review →
02

Side-by-Side Comparison

Field
STS2MCP logoSTS2MCP
unity-mcp logounity-mcp
Category
Dev Tooling
Dev Tooling
Stars
★ 526
★ 15.3k
License
MIT
MIT
Install Command
git clone https://github.com/Gennadiyev/STS2MCP.git
Unity Package Manager → Add from git URL: https://github.com/CoplayDev/unity-mcp.git?path=/MCPForUnity#main
Updated
2mo ago
4d ago
Open Source
Yes
Yes
Website
↗ Visit
↗ Visit
GitHub
↗ GitHub
↗ GitHub
Tags
agentic-ai, mcp-server, mcp-servers
Unity, LLM, AI Assistant
03

Features

STS2MCP logoSTS2MCP
01Exposes game state and actions via a localhost REST API
02Optional MCP server for Claude Desktop / Claude Code integration
03Supports singleplayer and multiplayer (co-op)
04Automatically starts HTTP server on localhost:15526
05Allows AI agents to fully automate game runs
unity-mcp logounity-mcp
01Natural Language Control over Unity
02Comprehensive Unity Toolset (assets, scenes, scripts, etc.)
03Automation of Repetitive Workflows
04Extensible with Various MCP Clients
05Seamless AI Assistant Integration
04

Use Cases

STS2MCP logoSTS2MCP
↳AI agents autonomously playing Slay the Spire 2
↳Collaborative human-AI co-op runs
↳Benchmarking AI reasoning and decision-making capabilities
unity-mcp logounity-mcp
↳Rapidly creating and prototyping Unity applications using natural language.
↳AI-driven management of Unity assets, scenes, and scripts.
↳Automating complex or repetitive Unity development workflows.
05

Best For

STS2MCP logoSTS2MCP
—
unity-mcp logounity-mcp
Most PopularEssentialTrending
FAQ

FAQ

What is the difference between STS2MCP and unity-mcp?
Both STS2MCP and unity-mcp are in the Dev Tooling category. STS2MCP has 526 stars, while unity-mcp has 15.3k stars.
Which is better, STS2MCP or unity-mcp?
The best choice depends on your use case. Choose STS2MCP if AI agents autonomously playing Slay the Spire 2, and unity-mcp if Rapidly creating and prototyping Unity applications using natural language..
Is STS2MCP free or open source?
Yes, STS2MCP is open source on GitHub (MIT).
Is unity-mcp free or open source?
Yes, unity-mcp is open source on GitHub (MIT).
Cloud Infrastructure
Ad

Deploy on DigitalOcean

Host your MCP servers, Docker containers, and AI agents with $200 free credit over 60 days.

Claim $200 Free Credit
→

Related

Alternatives to STS2MCP →Alternatives to unity-mcp →STS2MCP details →unity-mcp details →unity-mcp vs GitHub MCP Server →blender-mcp vs unity-mcp →