3D Tetris
This is a tetris clone with a special twist: it's in three dimensions instead of two. The game occurs in a 5x5x10 space and pieces can be rotated along the x, y, or z axes. There is also a two-player mode. The controls are listed in game. Like normal tetris, the level increments every ten lines (except now to get a line you need to fill a 5x5 square). Enough talk, try it for yourself!