A common Open Game in chess, characterized by the moves 1.e4 e5 2.Nf3 Nc6 3.d4, in which white's third move is queen's pawn to the forth rank.

(uncountable) A chess opening characterized by the moves 1.e4 e5, in which both White and Black move their king's pawn to the fourth rank with their first move.

plural of sandbox game

(video games, role-playing games) A game with no linear storyline or specific goal, the player deriving amusement from a range of open-ended interactions or situations.

(chiefly UK) Alternative form of game room

plural of games room

plural of blame game

(informal, idiomatic) A situation in which people attempt to blame others rather than trying to resolve a problem.

plural of game theorist

A mathematician whose work is in game theory.