Moddable Games Tools

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

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

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

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

Shuffle and deal a custom deck of arbitrary named cards

List all available deck types with metadata

Generate a random game jam theme combining mechanics and themes

Resolve a Nukes combat encounter between units

Track scores for players in any game

Compute field of view from a hex position

Generate a hex map and export as SVG

Generate a hex map for a specific game and player count

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

List all available hex map game types with configuration options

Find shortest path between two hex coordinates

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

Get time remaining in the current Mod Jam

Get voting status for the current Mod Jam

Generate random territory/resource setup for a Nukes game

Ask the oracle a yes/no question with likelihood modifier

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

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

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

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

List available oracle tables for a system

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

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.

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

Get full details and piece list for a specific set

Search the piece set gallery by name, style, or game type

Get statistics about the piece gallery (total sets, styles, authors, game families)

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"}).

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

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".

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.

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.

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

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)

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".

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

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.

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).

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

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.

Randomise turn order for a list of players

Browse entities by category with pagination

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

Get full details of a specific RPG entity by name

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

Generate random loot/treasure for a system and tier

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

Generate a random encounter for a system and difficulty level

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

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

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

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.

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.

Get rules for a specific game variant

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

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

Get a random game suggestion from the library

Full-text search across all published rulebooks. Returns section-typed results with deep-link anchors.

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

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

Randomly divide players into teams

Milty-style TI4 draft with pick pools per player

Draw random agenda cards for TI4 political phase

Draw random public objectives for TI4

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

Generate random faction assignments for Twilight Imperium 4th Edition

Get details of a specific tile set with all tile types

Search hex tile sets by name, game, or terrain type

Get statistics about available tile sets

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