AI-Powered TTRPG Engine
116 MCP tools. 5 genre themes. One engine to rule them all.
Everything you need to run a TTRPG with AI
Run full TTRPG sessions with Claude as your GM
Create complete worlds with archetypes, monsters, NPCs, lore
Initiative, attacks, damage, conditions — all automated
Clocks, leads, relationships, pacing, investigations
Human + AI player coordination with turn management
File-based storage, seeded RNG, full replay
Click a theme to transform the page
Model Context Protocol Architecture
MythXEngine is a Model Context Protocol server. Connect it to any MCP-compatible client and start playing.
{
"mcpServers": {
"rpg": {
"command": "node",
"args": ["/path/to/mythxengine/packages/mcp-server/dist/index.js"]
}
}
}# Install dependencies
pnpm install
# Build all packages
pnpm build
# Run tests
pnpm testA 16-bit pixel-art design system for TTRPG applications. Pixel fonts, 8px grid, step-based animations, CRT effects, and 5 genre-specific themes.
@rpg-mcp/mythx-theme