Quadra is an addictive puzzle game and competitive, action-packed multiplayer game all-in-one. It features incredibly smooth gameplay, recursive line clearing allowing blocks to combine in violent chain reactions, block shadow to help you drop blocks with precision 10 levels with colorful background images and matching sound effects, integrated CD music player, worldwide highscore table with recordings of your best performances, fully configurable multiplayer mode with team play, keep an eye on your opponents with the remote watch windows, chat window, powerful and flexible user interface TCP/IP support for internet or LAN multiplayer games and more.
Real Mah Jongg is a social game that originated in China thousands of years ago. Four players, named after the four winds, take tiles from a wall in turn. The best tiles are made of ivory and wood; they click pleasantly when you knock them together. Computer Solitaire Mah Jongg (xmahjongg being one of the sillier examples) is nothing like that but it's fun, or it must be, since there are like 300 shareware versions available for Windows. This one is for X11 and it's free.