Authentic Japanese mahjong with riichi mechanics and dora tiles. - Learn how to play: Tutorials and game instructions for new players. - Multiplayer and singleplayer modes. - Multiple AIs with different play styles. - Configurable rule sets: Play with official JPML, EMA, or WRC rules. Or define your own rules. - Replay functionality: Save replays of any game. Replays can be watched with fast forward and rewind. You can also jump into play mode at any point during the replay and try to finish the hand differently. - Share replays: Share your saved replays directly from the game and send them to your friends. Open the shared replay files with the game to watch or save the replay. - Special moves: Undo your last turn, look for tiles, or flip the table! - Guess the wait: Special game mode to practice your discard reading skills. Try to guess what tiles your opponents need to win.