# Moddable.Games

> Open-source engines, community-built mods, and original games designed to be taken apart.

Moddable.Games is a workshop that publishes open-source rulebook mods for existing board games, plus original games designed to be modded from day one. We also build shared engines (Chess, Hexmaps) that power multiple games and tools.

## Data Feeds

These JSON files contain structured data about all our content:

- [Mods Library](https://moddable.games/data/mods.json): 10 rulebook mods across 6 base games
- [Games](https://moddable.games/data/games.json): 3 original games (Endless Skies, Planet Mongo, Nukes)
- [Engines](https://moddable.games/data/engines.json): 2 shared engines (Moddable Chess, Moddable Hexmaps)
- [News](https://moddable.games/data/news.json): 13 articles about game design and modding
- [Team](https://moddable.games/data/team.json): 4 team members

## Key Pages

- [Homepage](https://moddable.games/): Overview and featured content
- [Mods Library](https://moddable.games/mods/): Filterable collection of all mods
- [Games](https://moddable.games/games/): Original games catalogue
- [Engines](https://moddable.games/engines/): Shared engine SDKs
- [Tools](https://moddable.games/tools/): Interactive game tools (dice, drafters, trackers)
- [News](https://moddable.games/news/): Articles on game design and modding philosophy
- [About](https://moddable.games/about/): Mission and approach
- [Community](https://moddable.games/community/): Discord and engagement

## Live Applications

- [Moddable Chess Engine](https://chess.moddable.games): 74 playable chess variants with AI
- [Moddable Hexmaps](https://hex.moddable.games): Hex map generator for tabletop games
- [Nukes](https://nukes.moddable.games): Playable strategy game

## Mod Categories

- **Total conversion**: Complete reimagining of a base game (accent: red)
- **Rebalance**: Mechanical adjustments to improve gameplay (accent: green)
- **Reskin**: Thematic/aesthetic changes preserving core rules (accent: blue)

## AI Tool Access (MCP)

This site provides 56 AI-callable tools via the Model Context Protocol (MCP) at:

- **MCP endpoint:** https://tools.moddable.games/mcp (SSE transport)
- **REST API:** https://tools.moddable.games/api/call (POST with `{"tool": "name", "args": {...}}`)
- **OpenAPI spec:** https://tools.moddable.games/openapi.json
- **Agent skills:** https://tools.moddable.games/.well-known/agent-skills.json
- **Server card:** https://tools.moddable.games/.well-known/mcp/server-card.json

No authentication required. All tools are free and open.

### Tool Namespaces

- **Chess** (9 tools): variant listing, legal moves, analysis, puzzles, SVG render
- **Hex Maps** (6 tools): map generation, pathfinding, FOV, SVG export
- **Piece Gallery** (3 tools): search/browse 96 chess piece sets
- **Rules Library** (5 tools): game/variant lookup, search, random
- **Game Tools** (12 tools): TI4 drafting, Mancala, Morris, Ur, Pachisi, Nukes, Colony
- **Oracles & RPG** (14 tools): oracle tables, encounters, entity browser (10 RPG systems)
- **Utilities** (7 tools): dice, coins, teams, factions, mod jam

## Open Source

All engines and tools are MIT licensed. Game rules are CC-BY-SA 4.0. Source code available on GitHub.