microsoft mahjongSolitaire Collection · Mahjong · Jsaw · Minesweeper · Sudoku · Ultimate Word Games · Treasure Hunt · Wordament · about · shop. Welcome to Microsoft CasualMicrosoft Mahjong is the classic tile-matching game now updated with Daily Challenges, a new look and feel, and over 40 puzzles! Enjoy gorgeous graphics and relaxing sounds with multiple visual themes to choose from.