Game Rulebooks
Open rulebooks for original games, creative mods of published titles, and encyclopaedic coverage of public domain classics. Every rule documented, every variant preserved.
Every chess variant, one engine
The world's oldest family of capture games
A new hex board every game of Talisman
The percentile-skill engine behind Call of Cthulhu, RuneQuest, and Pendragon
A classless OSR adventure game about exploring a dark and mysterious Wood
Powered by the Apocalypse fantasy dungeon-crawling, fiction-first play
A flexible, narrative-first tabletop RPG built on aspects, fate points, and the four actions
A classless OSR rules toolkit for running old-school fantasy adventures
Trick-taking games for the 32-card Skat deck
Match the pips, build the chain, score the ends
Japanese flower cards: 12 monthly suits, 48 cards
A tile-matching game of skill, strategy, and fortune
A minimalist toolkit for old-school-style sandbox adventuring
Paizo's fork of D&D 3.5, the most complete open ruleset in existence
Ancient Egyptian race game (c. 3500 BCE), reconstructed from archaeological evidence
Every game a standard deck of cards can play
Games built on standard six-sided dice
A perilous journey through the Forge, guided by moves and oracle tables
Ancient Chinese chess: cannon fire, palace tactics, and the river divide
Hidden-rank warfare — the original family that spawned Stratego
Japan's classic strategy game where captured pieces change sides
Guide your Queen to the centre of a 91-hex board
Officers defend a fortress against a siege of soldiers
Animals battle across rivers and traps to reach the enemy den
Korean stick-throwing race across a circular track
The open core rules for the world's most popular roleplaying game
Connect your two edges across a diamond of hexagons
A perilous quest through the Ironlands, guided by vows and oracle tables
Elizabeth Magie's 1904 economic satire — five variants spanning the game's full history from patent to Prosperity
Race across the star board to claim the opposite point
Cold-war territory control on a hex map with nuclear brinkmanship
King against the horde: asymmetric Norse strategy games of the Viking Age
The national game of Madagascar: capture by approach and withdrawal
The loop-capture game of Java: capture through the corner arcs
Four thousand years of emergent complexity from one rule
Euro-style resource management meets Monopoly
Race your pieces across the board before your opponent
3D exploration and mercenary factions for Twilight Imperium
Flip your opponent's discs to claim the board
The ancient Indian game of the Mahabharata — three long dice, super-pieces, and split throws
The ancient Indian race game behind Ludo, Sorry!, and Trouble
Five thousand years of race, risk, and probability
The world's most-played family of count-and-capture games
The ancient mill game, played on stone, cloth, and wood across five continents
The oldest known board game: reconstructed from 4,500-year-old clay tablets
Asymmetric fantasy strategy on modular dungeon boards