Moddable Games Tools

games.moddable.toolsPublished by tools.moddable.gamesOfficial publisherv1.1.0Updated Oct 24, 2026

15 tools for chess variant analysis, hex map generation, and board game utilities

VerifiedStreamable HTTPWeb executable

Overview

AI-generated overview

Lets an assistant create and play many chess and board game variants, generate hex maps, and look up board game rules and variants.

What you can do
Provides play tools for chess and many other board game families: create a game, list legal moves, apply moves, check status, get AI move suggestions, and render the board as SVG. Separate tools generate hex maps, compute field of view and find paths, and query rulebooks, variant lists, diagrams and full-text search.
When to use it
Use it when you want an assistant to help with chess and other board game play, generate hex maps, or look up board game rules and variants. Static rule lookup and position analysis also work on their own.
Requirements
Remote HTTP endpoint; no local package to install. The input declares no authentication, environment variables or headers.
Before you install
Several chess tools are marked deprecated or removed and point to the play_ tools instead. Applying moves changes game state; AI move suggestions and board rendering are produced by the service.

Installation

In SourceWeft

  1. Open Moddable Games Tools in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/games.moddable.tools%2Fmoddable-games-tools/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "moddable-games-tools": {
      "type": "http",
      "url": "https://tools.moddable.games/mcp"
    }
  }
}

README

Moddable.Games

Creating games you already own.

A multi-page marketing site and tools platform for an open-source board game modding workshop. Ten mods. Three original games. Two open-source engines. One Discord.

Stack

HTML + Vanilla JS + Zero dependencies + Zero build step

Modular JS architecture: one loader (js/mg-loader.js) loads 12 shared modules + page-specific scripts. Zero inline scripts or styles.

Routes

URLPage
/Home
/mods/Filterable mod library
/mods/[slug]/10 mod detail pages (incl. Dungeon Chess)
/games/Games hub
/games/nukes/Nukes
/games/mongo/Mongo
/games/endless-skies/Endless Skies
/engines/Engines hub
/engines/moddable-chess/Moddable Chess engine
/engines/moddable-hexmaps/Moddable Hexmaps engine
/developers/Developers / Tools API
/news/News index
/news/[slug]/13 article pages
/tools/Tools hub (dice, names, scores)
/tools/ti/Twilight Imperium tools
/tools/talisman/Talisman tools
/tools/nukes/Nukes tools
/submit/Mod submission form
/about/About
/about/roadmap/18-month roadmap
/team/Team
/community/Community / Discord

Run locally

bash
python3 -m http.server 8000

Open http://localhost:8000/. Clean URLs, no .html extensions.

Deploy to GitHub Pages

  1. Push to GitHub
  2. Settings → Pages → Deploy from main branch, root folder
  3. Update the <meta name="mg-base"> tag across pages to match your deploy path:
Scenariomg-base value
Custom domain (root)(remove the tag)
username.github.io repo(remove the tag)
Project repo (/repo-name/)/repo-name

Design system

DisplayInter Tight 500–700
BodyInter 400–700
MonoJetBrains Mono 400–600
PixelPress Start 2P (eyebrows only)
#d11a1a  red         Total conversion / Nukes#3a9928  green       Rebalance / Mongo / Endless Skies#0c4f8d  blue        Reskin / TI tools#0a0d2a  cosmicDeep  Hero backgrounds#f5f4ef  canvasLight Warm off-white sections (not pure white)#14161c  ink         Primary text on light

Rules: No drop shadows. Pill buttons only. One RGB primary per surface. Hex grid SVG overlay on all dark heroes.

JS Architecture

js/├── mg-loader.js            ← entry point, loads all modules├── mg-core.js              ← tokens, el(), url(), MG.data (fetch layer)├── mg-buttons.js           ← btn(), linkBtn()├── mg-cards.js             ← modCard(), pageHero()├── mg-navbar.js            ← navbar()├── mg-footer.js            ← footer()├── mg-search.js            ← global Cmd+K search├── mg-animations.js        ← scroll reveal + TOC spy├── mg-mods-content.js      ← mod page content (rules, components, etc.)├── mg-mod-page.js          ← data-driven mod detail renderer├── mg-news-article-page.js ← shared news article renderer└── mg-*-page.js            ← page-specific scripts (home, tools, etc.)
data/├── mods.json               ← mod library (10 entries)├── games.json              ← games (3 entries)├── engines.json            ← engine listings (2 entries)├── mcp-tools.json          ← MCP tool registry (50 tools, 7 namespaces)├── news.json               ← news posts (13 entries)└── team.json               ← team members (4 entries)

Pages load mg-loader.js (shared modules) + their own page script. Data is fetched via MG.data.get('mods') → Promise, or MG.data.get('mod', 'slug') for single items. Legacy MG.data.load(['mods','news']).then(store => {...}) still works.

Changelog

2026-07-22
  • Added Maze Rats (94 procedural tables) to oracle pipeline and oracles page
  • Encounter Builder now supports D&D 5e and Pathfinder 1e via system selector
  • Discord /encounter command uses autocomplete for future-proof system selection
  • Rebuilt rules-index.json (8,426 entries across 41 games, added table-type indexing)
  • MCP Worker bumped to v1.7.0
2026-07-20
  • Added GA4 analytics tracking to all untracked interactive modules
  • API playground: tool select, category expand, tool run events
  • Hex embed: layout, size, player, style changes and map generation
  • TI Dashboard: game start, strategy picks, pass, Mecatol claims, agenda draw/resolve, game over
  • Registered tool_name custom dimension in GA4 for per-MCP-tool breakdowns
  • D&D Encounter Builder, Discord oracle commands, and /test suite (from prior session)
  • Closed issues #131, #132, #135
2026-06-10
  • Deployed MCP tools server at tools.moddable.games (42 AI-callable tools across 6 namespaces)
  • Serves MCP protocol (SSE), REST API, llms.txt, OpenAPI 3.1, .well-known/mcp.json discovery
  • New /developers/ section: landing page + /api/ sub-page + /examples/ sub-page
  • Purple section accent (#8b5cf6), SVG hero feature, unique OG images
  • Homepage "For Developers" band between Featured Mod and Nukes sections
  • Nav reordered: Mods, Engines, Games, Tools, Developers, About, News (SVG/cube alternation)
  • Added dice_roll and ti4_random_factions as site-native tools
  • Puzzle generation uses pre-computed pool (Cloudflare Workers free tier)
  • AI Integration sections added to chess.moddable.games and hex.moddable.games
  • Favicon and full OG/Twitter meta tags on tools.moddable.games Worker
2026-06-09
  • TI4 Objective Tracker: full game-session mode with player scoring, secret objectives, bonus VP tracking
  • Supports all expansions (base, Prophecy of Kings, Discordant Stars, Thunder's Edge)
  • Setup screen with player count, VP target, expansion toggles, and colour assignment
  • Scoreboard with progress bars, tabbed interface (public/secrets/bonus), winner detection
2026-06-05
  • Unified hero system across all 17 pages with new shared sectionHero() component
  • Two-tier design: full cosmic heroes (tier-1 indexes) and reduced sub-page heroes (tier-2)
  • Colour system: RGB accents for consistent-sub-page sections, CMYK for divergent ones
  • Added parallax scroll with dramatic text fade-out, hex grid zoom, and gradient darkening
  • Added animated 3D feature elements: spinning cubes (Tools, Engines, About) and animated SVGs (Mods, Games, News)
  • Reordered nav to alternate cube/SVG features: Mods, Engines, Games, Tools, News, About
  • Fixed Endless Skies accent (green→blue to match detail page)
  • Fixed mods page hash-change filtering from navbar dropdown
  • Fixed tools page auto-scrolling to search on load
  • Normalised all hero copy: tier-1 gets 2-line titles with single highlighted keyword + 2-line balanced ledes
  • Created GitHub issue #81 for static site build system migration
  • New assets: hex-grid-purple.svg, hex-grid-cyan.svg, hex-grid-magenta.svg, hex-grid-amber.svg
2026-06-04
  • Rewrote Planet Mongo game page from real rulebook (v0.9.0): 4X hex territory control, 8 factions, hidden orders, central market
  • Rewrote Endless Skies game page from real rulebook (v0.2.0): 4X worker placement, 8 factions, ship rooms, wormhole network
  • Both pages now honestly marked "In development" with no fabricated content
  • Removed fake community mods from both pages (no real mods exist yet)
  • Deleted dead per-game JS files and custom CSS (pages use shared data-driven renderer)
  • Updated meta tags and OG descriptions for both games
  • Synced all mod metadata from moddable-rules: versions, taglines, stats, development status
  • Replaced Talisman Worlds logo (new circular emblem from moddable-rules, properly on 410x410 canvas)
  • Fixed Talisman Worlds hero title (was still "Talisman: Hexed")
  • Replaced fabricated Econopoly content with real rulebook mechanics (resources, VP, choose-your-action)
  • Replaced fabricated Hyper Imperium content with real mechanics (3D exploration, promissory trades, mercenary builder)
  • Rewrote games-sync.json from actual rulebook front matter (all entries were stale)
  • Added RGB cube placeholder logo for all 6 community mods (#61 partial)
  • Closed #25 (mod download links complete on website side), #78, #79
2026-06-02
  • Synced MCE to v0.7.1 / 70 variants (from v0.6.8 / 64): stats, features, consumer APIs, developer guides
  • Moved Dungeon Chess from /games/ to /mods/ — it's a total conversion of chess, not an original game
  • Added news article: "Building Games on Chess" (MCE v0.7.1 consumer APIs + DC v1.2.0 renderer migration)
  • Rewrote Nukes game page from actual moddable-rules rulebook (removed all hallucinated content)
  • Added game logos to games index cards (410x410 normalized PNGs)
  • Updated all counts site-wide: 10 mods, 3 games, 13 news articles
  • Regenerated OG images for games page and new article
  • Added .game-card__logo CSS for logo thumbnails in game/mod cards
  • Fixed body text centering in games engines callout section
  • Created issues #78 (Mongo sync) and #79 (Endless Skies sync) for future rulebook rewrites
  • Bumped to v1.0.60
2026-05-28
  • Synced chess engine stats from moddable-chess v0.6.8: variant count 39/54→64, engine version, board types
  • Updated all stale chess references across 9 files (engines page, tools page, news cards, data files)
  • Added Colony as 4th hexmaps-powered game across engines page, stats, and consumer listings (#71)
  • TI4 tools: added Discordant Stars + Thunder's Edge expansions (36 factions, 26 objectives, 20 agendas) (#68)
  • Galaxy map generator: replaced player count dropdown with 7 official TI4 layout variants (3p–8p + Hyper Imperium)
  • Hexmap embed: added style selector (Artistic/Classic/Kenney/Realistic per game) with consistent URL params
  • Hexmap embed: postMessage bridge for "New map" regeneration without iframe reload
  • New Dice Lab at /tools/dice/ — dice roller + battle simulators for Risk, TI4, Axis & Allies, X-Wing, Blood Bowl, Memoir '44, Custom (#67)
  • Merged dice roller from tools index into Dice Lab as first tab
  • Removed strike planner widget from Nukes tools (redundant with full hexmaps embed)
  • Removed Hex Map Generator card from tools index (belongs under Engines, not Tools)
  • Updated "Games supported" count 3→4 on all hexmaps engine bands
  • Footer column titles now clickable links to their respective index pages
  • Renamed "Mod-specific tools" → "Per-game tools" with consistent spacing and anchors
  • Tab selection persists in URL hash (/tools/dice/#risk) for sharing
  • Mod detail page TOC scroll-spy fixed (calls initTocSpy after dynamic render)
  • Mod buttons wired up with real URLs: rules.moddable.games, BGG, Wikipedia, itch.io (#25 Part 1)
  • Removed Nuke Catan mod (invented, no supporting material) — homepage section now links to Nukes game + nuking-catan article
  • Related mods auto-derived from category/baseGame (no more hardcoded arrays)
  • Fixed mod/game counts: 9 mods, 4 games across all references
2026-05-27
  • New tools: Resource Dashboard, Bag Tracker, Role Distributor (all fully configurable with game presets)
  • Removed: Map Grid Generator (redundant), Voting Booth (needs server), Combat Odds (rebuilt as Dice Lab #67)
  • Fixed invisible buttons on tools page (wrong variants for light backgrounds)
  • Tools index: added Hex Map Generator card, updated mod-specific card descriptions
  • Hexmaps tools card links to engine page (not external generator)
  • Nukes game page: added "Generate Map" hero CTA
  • Embed moddable-hexmaps engine in tools pages: /tools/nukes/, /tools/talisman/, /tools/ti/ (#62)
  • Shared embed module (js/mg-hexmap-embed.js) + CSS (css/tools-hexmaps.css)
  • "Powered by Moddable Hexmaps" engine band on all three pages
  • Seed sharing via URL params works through iframe
  • New /engines/ section: top-level nav item, index page, Moddable Chess + Moddable Hexmaps pages
  • Reclassified Chess and Hexmaps from "Games" to "Engines" — they're SDKs, not games
  • Nav updated: Mods | Games | Engines | Tools | News | About
  • Moved /games/moddable-chess/ → /engines/moddable-chess/ (old URL redirects)
  • Created /engines/moddable-hexmaps/ showcase page (green accent, no embed yet — pending hexmaps#7)
  • Footer, search, tools chess page, news.json all updated to new paths
  • Games index: removed chess, added "Powered by our engines" callout
  • Created data/engines.json as data source for engine listings
  • Cross-project issues: moddable-chess#47, moddable-hexmaps#17
  • Fix homepage crash: "Fog of War Chess" removed from mods.json but still referenced in homepage featured list
  • Fix hero parallax spilling past section boundary — wrap in overflow:hidden container
  • Fix home-tabs nav hidden under section above — remove overflow:hidden that clipped negative margin
  • Bump version 1.0.29 → 1.0.30 (was missing from previous commit)
  • News articles: author sidebar card with breakout team photo, name, role, profile link
  • News articles: real share links (X, Facebook, LinkedIn, copy URL)
  • News articles: all 12 posts now have callout cards with real links (no more dead # hrefs)
  • News articles: hybrid auto-derive callout from tags when no manual modCard specified
  • News articles: improved right rail spacing (topics, mod card)
  • Added teamSlug field to all news posts — author rendered from team.json, not hardcoded
  • Per-team-member OG images with breakout photo + shadow slit effect
  • Replaced 16 template OG images: 10 mod pages (hex-grid cards) + 6 tool pages (geometric icons)
  • OG scripts data-driven: build/gen-mod-og.py (reads mods.json), build/gen-tools-og.py
  • Mod logos: added logo field to mods.json, logos display on cards, detail heroes, and OG images
  • Copied Talisman: Hexed + Econopoly logos from moddable-rules; Hyper Imperium already had one
  • Fix mod detail page hero never rendering (DOMContentLoaded race condition)
  • Component list styling: accent-coloured outlined bullets, better spacing
  • Generated ALL remaining OG images — zero template placeholders left (closes #53)
  • 4 build scripts for future regeneration: gen-team-og.py, gen-mod-og.py, gen-tools-og.py, gen-remaining-og.py
  • Created #61 (missing mod/tool logos) and moddable-chess#44 (board themes)
2026-05-26
  • Update chess variant count 20→39 across all pages (closes #55, #54)
  • Remove dead mg-game-dungeon-chess-page.js — orphaned file not loaded anywhere (closes #52)
  • Fix inline style="display:none" on chess tools page → CSS class with classList toggle
  • Refactor navbar, footer, and cards from inline style:{} objects to dedicated CSS files
  • New files: css/navbar.css, css/footer.css, css/cards.css (63 rules total)
  • Loader auto-injects component CSS via document.write — no per-page HTML changes needed
  • Only data-driven dynamic values (accent colors, image URLs) remain as inline style strings
2026-05-24
  • Added per-page OG/Twitter meta tags via build/stamp-meta.py (closes #35)
  • Fleshed out 4 stub pages: /press (stat cards, swatches, assets), /subscribe (form + success state), /tools/decks (deck builder), /tools/chess (variant picker)
  • Added all new pages to navbar dropdowns, footer links, and tools index
  • Created new Moddable-Games/moddable-chess repo — shared chess engine with 14 variants
  • Renamed existing chess repo to Moddable-Games/dungeon-chess
  • Added favicon set (SVG + PNG), apple-touch-icon, PWA manifest, theme-color (closes #8)
  • Added CNAME for web.moddable.games, production OG URLs, GitHub Pages ready (closes #9)
  • 47 branded OG social images generated for all pages
  • Auto-detect local dev path from URL — no manual mg-base meta tag needed
  • Responsive design audit: mobile breakpoints across 11 CSS files (closes #6)
  • ARIA landmarks, skip-to-content link, aria-current=page on nav (closes #24)
  • Fixed placeholder # links — community channels now non-link divs (closes #26)
  • TI4 agenda voter expanded: 6 → 46 cards, full base game deck (closes #3)
  • Accessibility: stone colour darkened for WCAG AA contrast (closes #11)
  • Performance: lazy-load below-fold images (closes #14)
  • Tools interactivity audit: all widgets verified functional (closes #27)
  • Repo made public, GitHub Pages live at web.moddable.games
  • Team member detail pages with authored posts, long bios, teammate links (closes #32)
2026-05-25
  • Rebuild Nukes tools (#49): strike planner, combat calculator, hostage tracker, unit reference — based on real rulebook
  • Chess tools: 20 playable variants (added No Castling, Torpedo, Horde, Extinction, Breakthrough, Maharaja)
  • Chess game page: stats reflect v0.4.2 engine, CTAs link to chess.moddable.games, 6-category variant grid
  • Fix nav dropdowns clipped by overflow:hidden on header
  • Featured card style (dark bg) for Dungeon Chess on Moddable Chess page
  • Hero cube centred on mobile
  • Fix mobile nav: drawer hidden on load, prevent horizontal overflow
  • Fix homepage hero bg repeating on mobile
  • Fix team page pop-out overlap on mobile (increased row-gap)
  • Version system: bump.sh single-source from version.txt, footer displays version
  • Cache-busting ?v= on all CSS/JS loads across 52 HTML files
  • Removed fan-made disclaimer from footer (to licensing page later)
  • Chess embed: live playable board via iframe from chess.moddable.games
  • Chess engine params: theme=light, boardonly=1, bg=, accent=, radius=
  • Match setup: mode selector (vs AI / Pass & Play), player names passed to engine
  • Dynamic iframe aspect ratio from variant board dimensions
  • Chess engine promo: full-width dark band section with USPs
  • Press kit: styled bullet lists as bordered accent cards
  • Auto-detect local moddable-chess path for iframe testing
2026-05-23
  • Refactored MG.data to Promise-based API: get(name) → Promise, get(type, slug) → single item lookup
  • Deduplicates in-flight fetches (no double-requests for same resource)
  • Removed ready() method (unused); load() kept for backward compat
  • Fixed responsive team page: breakout images scale down on mobile (≤600px)
  • Search index loads news asynchronously on first open (no longer relies on sync cache)
  • Templated all 13 mod pages — identical HTML shells, hero rendered from data
  • Extracted all 12 news article bodies to data/articles/{slug}.html partials
  • Article metadata (author, lede, TOC, modCard) moved into data/news.json
  • News page shells are now identical templates — full page rendered by JS
  • Created issue #35 for per-page Open Graph / Twitter meta tags
2026-05-22
  • Extracted all data from JS modules to JSON files (data/mods.json, games.json, news.json, team.json)
  • Added MG.data fetch layer in mg-core.js — async load()/get() pattern
  • Removed 4 data JS modules (mg-mods-data.js, mg-games-data.js, mg-news-data.js, mg-team-data.js)
  • Updated all consumer scripts to use MG.data.load().then() pattern
  • Added text-wrap: pretty to global CSS resets for orphan prevention
  • Redesigned tools page: filterable card grid with category bar (Game Night, Planning, Creative, Mod-Specific)
  • Converted 3 dark-themed tool widgets (Dice, Timer, Seating) to unified light card style
  • Added 3D spinning CSS dice to tools hero section
  • Redesigned team page with photo avatars breaking out of cards (4-column grid)
  • Removed font-test.html
2026-05-21
  • Extracted ALL inline scripts to external JS files (zero remain across 45 pages)
  • Created data-driven mod page renderer (mg-mod-page.js + mg-mods-content.js)
  • Created shared news article renderer (mg-news-article-page.js with data-toc)
  • Extracted team data to mg-team-data.js
  • Added TOC scroll-spy with accent colour highlighting
  • Added global rule: no inline <script> blocks (matches no inline styles)
  • Net: -5220 lines of inline JS removed, +3537 lines in proper external modules
2026-05-20
  • Extracted mods and games data into shared JS modules (mg-mods-data.js, mg-games-data.js)
  • Extracted all inline styles to external CSS files; complete JS module split
  • Split _mg.js into semantic modules (core, components, animations)
  • Added global search (Cmd+K) and made mod cards fully clickable
  • Scroll-reveal animation system, hero entrance choreography, button micro-interactions
  • Game page heroes: two-column layout with floating logos
  • Homepage: nuked-family illustration, Hyper Imperium logo, glowing section dividers
  • All 12 news articles created from WordPress, news index linked correctly
  • Nav dropdowns upgraded with animation and blue accent states
  • Removed all inline style attributes; semantic BEM class system throughout
  • Created 12 mod detail pages, games hub, Moddable Chess, Dungeon Chess, roadmap
  • Fixed double-url bug, removed redundant nav items, cleaned unused assets
2026-05-19
  • Restructured for clean URLs and GitHub Pages deployment
  • Initial site commit

License

MIT

Source: README.md at commit 13c0c23

Tools

89

chess_generate_puzzle

Get a random chess puzzle. Filter by variant, difficulty or theme. Not every variant puzzle carries themes; use chess_list_puzzle_types to see what the pool holds.

Parametersthemevariantdifficulty

chess_list_puzzle_types

List available puzzle variants, themes, and per-variant counts from the puzzle pool

Takes no parameters.

chess_list_variants

[DEPRECATED — use play_list_variants] List chess variants. Removal: v1.0.0.

Parametersgroup

chess_analyze_position

[DEPRECATED — use play_suggest_move] Analyse a chess position. Removal: v1.0.0.

Parametersdepthvariant

chess_make_move

[DEPRECATED — use play_apply_move] Apply a move to a chess game. Removal: v1.0.0.

Parametersmoverequiredvariant

chess_validate_move

[DEPRECATED — use play_validate_move] Check if a chess move is legal. Removal: v1.0.0.

Parametersmoverequiredvariant

chess_get_status

[DEPRECATED — use play_check_status] Get chess game status. Removal: v1.0.0.

Parametersvariant

chess_render_svg

[DEPRECATED — use play_render_board] Render a chess position as SVG. Removal: v1.0.0.

Parametersfenvarianthighlights

chess_make_moves

[DEPRECATED — use play_make_moves] Apply a sequence of chess moves. Removal: v1.0.0.

Parametersmovesrequiredvariant

chess_get_opening_book

[REMOVED — engine#98] Opening book resolution is broken in Worker context. No replacement.

Parametersvariant

hex_list_games

List all available hex map game types with configuration options

Takes no parameters.

hex_generate_map

Generate a hex map for a specific game and player count

Parametersgamerequiredseedsizeplayers

hex_export_svg

Generate a hex map and export as SVG

ParametersgamerequiredseedsizestylehexSizeplayers

hex_get_info

Get info about a specific hex coordinate (terrain, neighbours, distance)

Parametersqrequiredrrequiredgameseed

hex_compute_fov

Compute field of view from a hex position

Parametersqrequiredrrequiredgameseedrangerequired

hex_pathfind

Find shortest path between two hex coordinates

ParametersendQrequiredendRrequiredgameseedstartQrequiredstartRrequired

play_list_families

List all playable game families supported by the engine (chess, draughts, go, reversi, shogi, xiangqi, mancala, morris, hex, landlords-game, backgammon, standard-52, bavarian-32, flower-48, double-six-dominoes, mahjong, standard-dice, agon, asalto, chaupar, dou-shou-qi, fanorona, halma, nyout, pachisi, royal-ur, senet, stern-halma, surakarta, tafl)

Takes no parameters.

play_list_variants

List available variants for a game family. Each variant can be passed to play_create_game. Variants with flags (e.g. +random) can be requested as "slug+flag".

Parametersfamilyrequired

play_get_definition

Get the full engine definition (topology, render config, pieces, setup FEN) for a game variant. Returns the resolved frontmatter used to render and play the game.

Parametersfamilyrequiredvariant

play_create_game

Create a new game instance for a given family. Returns initial state to pass to subsequent calls. Variant can include flags like "grand+random" or "standard+drops".

ParametersfamilyrequiredrngSeedvariant

play_get_moves

Get all legal moves for the current position. Requires state from play_create_game or play_apply_move.

Parametersstaterequired

play_apply_move

Apply a move to the game and return the new state. Pass the move object exactly as returned by play_get_moves (format varies by family: chess uses {from,to}, go uses {coord} or {action:"pass"}).

Parametersmoverequiredstaterequired

play_check_status

Check the current game status: whose turn it is, whether the game is over, and who won.

Parametersstaterequired

play_suggest_move

Use AI to analyse the position and suggest the best move. Supports 5 difficulty levels across all 30 playable families.

Parametersstaterequireddifficulty

play_render_board

Render the current board position as SVG for any playable family (chess, draughts, go, reversi, shogi, xiangqi, mancala, morris, hex, landlords-game, backgammon, standard-52, bavarian-32, flower-48, double-six-dominoes, mahjong, standard-dice, agon, asalto, chaupar, dou-shou-qi, fanorona, halma, nyout, pachisi, royal-ur, senet, stern-halma, surakarta, tafl).

Parameterssizestaterequiredhighlights

play_export_fen

Export the current board position as a FEN-style setup string, in the form the variant's own frontmatter declares its starting position. Card, tile and dice games have no board position to export.

Parametersstaterequired

play_load_fen

Create a game from a FEN-style setup string, as returned by play_export_fen. Pass the same variant the position was exported from.

Parametersfenrequiredfamilyrequiredvariant

play_validate_move

Check whether a move is legal in the current position without applying it. Pass the move object in the same format as play_get_moves returns.

Parametersmoverequiredstaterequired

play_make_moves

Apply a sequence of moves to a game and return the final state. Stops at the first illegal move. Move objects must match play_get_moves format.

Parametersmovesrequiredstaterequired

rules_list_games

List all available game rulebooks with metadata (players, duration, complexity, mechanics). Filterable by type, complexity, and mechanics.

Parametersstatuscategorymechaniccomplexity

rules_get_game

Get full rulebook content for a specific game (markdown). For metadata only, use rules_get_game_meta instead.

Parametersgamerequired

rules_get_game_meta

Get structured metadata for a game: players, duration, complexity, mechanics, how_to_play, variant list, page list, related games. Lightweight alternative to fetching the full rulebook.

Parametersgamerequired

rules_get_page

Get a specific page/section from a game rulebook (e.g. character creation, combat rules, marketplace). Use rules_get_game_meta to see available pages.

Parametersgamerequiredpagerequiredsection

rules_get_variant_list

List all variants for a game with structured metadata (players, board, playable status, topology, engine config). Much richer than parsing the rulebook.

Parametersgamerequiredplayabletopology

rules_get_diagram

Get board diagram SVG URL for a game variant. Returns the diagram path, topology, and rendering metadata.

Parametersgamerequiredvariant

rules_get_variant

Get rules for a specific game variant

Parametersgamerequiredvariantrequired

rules_random

Get a random game suggestion from the library

ParametersplayersmaxDuration

oracle_list_games

List all supported RPG systems with oracle tables and entity data availability

Takes no parameters.

rpg_chargen

Generate a random character for an RPG system (D&D 5e, Pathfinder, Ironsworn, Cairn, Knave, etc)

Parametersclasslevelsystemrequired

oracle_roll

Roll on a random oracle table (Ironsworn, Starforged, Maze Rats, etc)

Parameterstablesystemrequired

oracle_list_tables

List available oracle tables for a system

Parameterssystemrequired

oracle_ask

Ask the oracle a yes/no question with likelihood modifier

Parametersquestionrequiredlikelihood

oracle_scene

Generate a scene using oracle tables. With a recipe, rolls each table in the recipe, resolves cross-references, and composes a narrative sentence. Without, picks random tables.

Parameterstypereciperegionsystem

rpg_search_entities

Search RPG entities (spells, monsters, classes, items) across all systems

Parametersgamelimitqueryrequiredsystemcategory

rpg_get_entity

Get full details of a specific RPG entity by name

Parametersgamenamerequiredsystemcategory

rpg_random_encounter

Generate a random encounter for a system and difficulty level

Parameterstypesystemdifficulty

rpg_browse_category

Browse entities by category with pagination

ParametersgamepagesystemrequiredcategoryrequiredpageSize

rpg_loot

Generate random loot/treasure for a system and tier

Parameterstiercountsystem

oracle_list_recipes

List all predefined scene recipes — curated multi-table compositions that produce coherent narrative prompts

Parametersgame

oracle_interpret

Resolve oracle cross-references. Given a result like "Action + Theme", follows references and returns expanded results

Parametersgameresultrequiredsource_table

oracle_table_view

View the complete contents of an oracle table — all entries with roll ranges

Parametersgametablerequired

oracle_encounter

Generate a tabletop RPG encounter with CR-appropriate monsters, terrain, and loot (D&D 5e or Pathfinder 1e)

Parameterssystemterraindifficultyparty_sizeparty_levelmonster_type

rpg_list_categories

List entity categories for an RPG system (spells, monsters, classes, equipment, etc)

Parametersgamesystem

rpg_random

Get random entities from an RPG system for inspiration or encounter prep

Parametersgamerequiredcountsystemcategory

ti4_random_factions

Generate random faction assignments for Twilight Imperium 4th Edition

Parametersplayersrequiredexpansions

ti4_draft_factions

Milty-style TI4 draft with pick pools per player

Parameterschoicesplayersexpansions

ti4_list_factions

List all TI4 factions with colors, flags, and expansion info

Parametersexpansions

ti4_draw_objectives

Draw random public objectives for TI4

Parameterscountstageexpansions

ti4_draw_agendas

Draw random agenda cards for TI4 political phase

Parameterstypecountexpansions

nukes_setup_generator

Generate random territory/resource setup for a Nukes game

Parametersplayers

game_nukes_combat

Resolve a Nukes combat encounter between units

Parametersterrainattackerrequireddefenderrequired

colony_dice_odds

Calculate settlement dice probability for Colony/Catan-style resource numbers

Parametersnumbersrequired

game_deck_create

Create, shuffle, and optionally draw/deal from a card deck

Parametersdrawtypehandsper_hand

game_deck_list_types

List all available deck types with metadata

Takes no parameters.

game_deck_deal

Shuffle and deal a custom deck of arbitrary named cards

Parametersdrawcardsrequiredhandsper_hand

game_score_tracker

Track scores for players in any game

Parametersgamescoresplayersrequired

talisman_draw_characters

Draw random characters from the Talisman 4e (revised) base set for a character lottery

Parameterscount

talisman_draw_encounter

Draw a random encounter for a Talisman ring (outer, middle, inner, crown)

Parametersring

jam_status

Get the current Mod Jam status (active jam, deadline, submissions)

Takes no parameters.

jam_timer

Get time remaining in the current Mod Jam

Takes no parameters.

jam_vote

Get voting status for the current Mod Jam

Takes no parameters.

dice_roll

Roll dice using standard notation (e.g. 2d6+3, 4d8, d20). Supports comma-separated pools and keep-high/low (4d6kh3).

Parameterscountnotationexpression

coin_flip

Flip one or more coins, or pick from a list of choices

Parameterscountchoices

team_split

Randomly divide players into teams

Parameterscountteamsmembersplayersrequired

random_player_order

Randomise turn order for a list of players

Parametersplayersrequired

timer_suggest

Suggest time controls for a game based on player count and complexity

Parametersgamerequiredplayers

game_jam_theme

Generate a random game jam theme combining mechanics and themes

Parameterscount

dice_odds

Calculate probability of meeting a target with a dice expression. Supports keep-high/low (4d6kh3).

Parameterstargetrequiredcomparisonexpressionrequired

Version history

1
  1. v1.1.0LatestSep 16, 2026

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