BlockIn is a clone of the game BlockOut using SDL and perl. For those who haven't had a chance to play the original, BlockIn is best described as a 3D version of Tetris in which pieces fall from the top of the pit. These pieces must be rotated in 3D space to fill levels. When a level is complete, the pieces above replace the pieces below. It sounds more complicated that it really is.
Copyright 2004, 2005 Joseph Jezak. Distributed under the GNU GPL.