game rules
set of player instructions used for a game
role-playing game system
set of game mechanics used in a role-playing game
Lake Geneva Tactical Studies Association
Wargaming club active in Lake Geneva, Wisconsin, US
Magic: The Gathering rules
the set of rules governing play of Magic: The Gathering
System Reference Document
set or subset of role-playing mechanics available under an open license
magic system
set of rules that magical effects follow in a fictional setting
Laws of the Rugby Football Union
official laws of rugby adopted by the Rugby Football Union
game mechanic
construct, rule, or method designed for interaction with a game's state
rules of Go
Details of the rules for the abstract strategy board game for two players
laws of cricket
rules of the game of cricket
betting in poker
procedures of betting in poker
zone of control
tiles adjacent to tiles occupied by objects in board wargames
mercy rule
rule that ends a sports event due to an insurmountable lead
Tractics
miniature wargaming rules
strip mahjong
sexualized variant of mahjong