1. A free, networked version of T*tris Netris is a free, networked variant of Tetris. One-player mode is a tad boring at the moment, because it never gets any faster, and there's no scoring. This will be rectified at some point. Two players can play against each other. If you fill two or three lines with one piece, your opponent gets respectively one or two unfilled lines at the bottom of his screen. If you fill four lines with one piece, your opponent will get four unfilled lines. This version at least partially supports robots. You can find the protocol description in the documentation, and a sample robot in the examples. From Debian 3.0r0 APT