Ensure STS2_MCP.dll and .json are in the /mods/ directory and mods are enabled in game settings.

STS2MCP MCP — ユースケース, インストール & ライブデモ

なぜ使うのか

主な機能

Real-time game state exposure via REST API and MCP server
Autonomous AI gameplay — let Claude play full runs of STS2
Beta co-op mode for collaborative AI-human gameplay
Cross-platform: Windows, Linux, and macOS
Simple mod installation: drop DLL into mods folder

ライブデモ

実際の動作

sts2mcp-2.replay ▶ 準備完了

0/0

インストール

クライアントを選択

~/Library/Application Support/Claude/claude_desktop_config.json · Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "sts2mcp-2": {
      "command": "TODO",
      "args": [
        "See README: https://github.com/Gennadiyev/STS2MCP"
      ]
    }
  }
}

Claude Desktop → Settings → Developer → Edit Config を開く。保存後、アプリを再起動。

~/.cursor/mcp.json · .cursor/mcp.json

{
  "mcpServers": {
    "sts2mcp-2": {
      "command": "TODO",
      "args": [
        "See README: https://github.com/Gennadiyev/STS2MCP"
      ]
    }
  }
}

Cursor は Claude Desktop と同じ mcpServers スキーマを使用。プロジェクト設定はグローバルより優先。

VS Code → Cline → MCP Servers → Edit

{
  "mcpServers": {
    "sts2mcp-2": {
      "command": "TODO",
      "args": [
        "See README: https://github.com/Gennadiyev/STS2MCP"
      ]
    }
  }
}

Cline サイドバーの MCP Servers アイコンをクリックし、"Edit Configuration" を選択。

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "sts2mcp-2": {
      "command": "TODO",
      "args": [
        "See README: https://github.com/Gennadiyev/STS2MCP"
      ]
    }
  }
}

Claude Desktop と同じ形式。Windsurf を再起動して反映。

~/.continue/config.json

{
  "mcpServers": [
    {
      "name": "sts2mcp-2",
      "command": "TODO",
      "args": [
        "See README: https://github.com/Gennadiyev/STS2MCP"
      ]
    }
  ]
}

Continue はマップではなくサーバーオブジェクトの配列を使用。

~/.config/zed/settings.json

{
  "context_servers": {
    "sts2mcp-2": {
      "command": {
        "path": "TODO",
        "args": [
          "See README: https://github.com/Gennadiyev/STS2MCP"
        ]
      }
    }
  }
}

context_servers に追加。保存時に Zed がホットリロード。

claude mcp add sts2mcp-2 -- TODO 'See README: https://github.com/Gennadiyev/STS2MCP'

ワンライナー。claude mcp list で確認、claude mcp remove で削除。

ユースケース

実用的な使い方： STS2MCP

How to have Claude play a run of Slay the Spire 2

👤 STS2 players curious about AI strategy ⏱ ~60 min beginner

使うタイミング： You want to see how an AI approaches deck building and combat decisions.

前提条件

STS2 with the mod installed — Download STS2_MCP.dll and .json to <game>/mods/, enable mods in settings
MCP server running — Server auto-starts on localhost:15526 when mod loads

フロー

Start a run

Start a new Slay the Spire 2 run. Check the game state — what character are we playing and what's our starting deck?✓ コピーしました

→ Character info, starting deck, and current map
Make strategic decisions

We're at a card reward screen. Analyze the options based on our current deck and suggest the best pick.✓ コピーしました

→ Analysis of each option with recommendation
Handle combat

We're in combat. Show me our hand, the enemies, and their intents. What's the optimal play order?✓ コピーしました

→ Combat analysis with recommended card play sequence

結果： A complete STS2 run with AI making strategic decisions.

注意点

AI makes suboptimal decisions without full game knowledge — Provide context about game mechanics and synergies the AI may not know

組み合わせ

他のMCPと組み合わせて10倍の力を

sts2mcp-2 + filesystem

Log game states and decisions for analysis and strategy improvement

Log every decision point and our choice to ~/sts2/run-log.json for later analysis.✓ コピーしました

ツール

このMCPが提供する機能

ツール	入力	呼び出すタイミング	コスト
get_game_state	none	Get the current game state (map, deck, health, combat, etc.)	0
execute_action	action: str, params?: obj	Execute a game action (play card, end turn, make a choice)	0

コストと制限

運用コスト

APIクォータ: N/A — fully local
呼び出しあたりのトークン: 200–1000 tokens per game state query
金額: Free mod — requires Slay the Spire 2 ($24.99)
ヒント: Query game state only at decision points, not every frame.

セキュリティ

権限、シークレット、影響範囲

認証情報の保管： N/A

データ送信先： Local only — REST API on localhost:15526

トラブルシューティング

よくあるエラーと対処法

Mod not loading

Ensure STS2_MCP.dll and .json are in the <game>/mods/ directory and mods are enabled in game settings.

確認： Check the game's mod manager for STS2MCP

Can't connect to API

The server starts on localhost:15526 when the mod loads. Ensure the game is running with the mod enabled.

確認： curl http://localhost:15526/state

Game state returns empty during loading screens

Wait until the game finishes loading. State is only available during active gameplay.

確認： Try again after the map or combat screen is visible

代替案

STS2MCP 他との比較

代替案	代わりに使う場面	トレードオフ
Minecraft MCP Server	You want AI-controlled gameplay in Minecraft rather than a card game	Different genre — open world building vs strategic card game

その他

リソース

📖 GitHub の公式 README を読む

🐙 オープンな issue を見る

🔍 400以上のMCPサーバーとSkillsを見る