MODDABLE.GAMES

Creating games
you already own

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

THE LIBRARY

Browse our collection or pick a game you own

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MOD OF THE MONTH

Hyper Imperium

Our homebrew for Twilight Imperium 4e + Prophecy of Kings. Hyper Movement, Hyper Trades, Hyper Objectives, Hyper Factions, Hyper Agendas — a faster ruleset that keeps the politics intact.

FOR DEVELOPERS

Board game engines as AI tools

13 AI-callable tools for chess variant analysis and hex map generation. Connect from Claude, Cursor, or VS Code in one command. Or build bots for Telegram, Slack, and Discord.

chess_analyze_position chess_generate_puzzle hex_generate_map
chess_validate_move hex_pathfind hex_compute_fov
chess_list_variants hex_export_svg chess_make_moves
ORIGINAL GAME · NUKES
Family playing a board game with a mushroom cloud

Are you ready
to nuke Catan?

Cold-war hex strategy with no dice and no luck. Return hostages to move, but every return reinforces your enemy. 45 million Catan owners already have the board.

From the table

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JOIN THE TABLE

Mod a game with us

Designers, playtesters, and rule-tinkerers building open-source board games together. Pitch a mod, test someone else's, or just argue about Catan's longest road rule.