Realistic 3D Thirty-One simulation with singleplayer, multiplayer and tutorial. With configurable AI strength and many adjustable rule and game variants you can start exciting matches - or just play for fun. Thirty-One is also known as Blitz, Trente-et-un, Cadillac, Whammy, Juble, Schwimmen, Schnauz, Knack and many others. Compete with tricky computer opponents, or play relaxing rounds with friends or family in online mode! Game environment, cards, rule variants and much more can be customized! For beginners, there is an animated tutorial in which Thirty-One is explained step-by-step with all the rules.