esports-mcp, Unity-MCP, godot-mcp are the best free/paid Games & Gamification MCP Servers.
OP.GG Esports MCP Server
MCP Server + Plugin for Unity Editor and Unity game. The Plugin allows to connect to MCP clients like Claude Desktop or others.
MCP server for interfacing with Godot game engine. Provides tools for launching the editor, running projects, and capturing debug output.