DFight is a multi-player 3D board game for Linux written using Clutter. It is inspired by a popular board game called Khet. DFight provides a virtual board to play the game with but it doesn't enforce the rules. You are free to move the pieces about however you like and you it won't force you to take turns. There is no AI player so you will need a friend to play against. It's best to play with two computers over a network or the Internet, but it's also possible to take turns with one computer.