DoubleSur

DoubleSur is a 4-player partnership trick-taking card game where winning tricks means nothing — only Doubles win the pool. Play solo against AI opponents or challenge friends online in real-time multiplayer from anywhere in the world — now supporting both iOS and Android players in the same game. HOW IT WORKS • 4 players split into 2 teams (A+C vs B+D) • Cards are dealt in 3 phases — the trump caller declares the suit • Every trick goes into the Pending Pool • A Double fires when the SAME player wins two consecutive tricks — capturing the entire pool for their team • First team to reach 52 Set Points wins SPECIAL RULES • Trick 3 Ace Restriction — the first Double cannot be won with an Ace • Trick 12 is always blocked — forces a decisive Trick 13 • Coat — trump team wins all 13 tricks: +1 Set Point • Dunk Coat — non-trump team wins all 13 tricks: +13 Set Points FEATURES • Real-time online multiplayer — create a room, share the code, play with friends worldwide • Cross-platform: iOS and Android players can play together • AI opponents with 3 difficulty levels • Player profiles with full career statistics • Supports 1 to 4 human players with AI filling empty seats