The Blackmoon development page has word of an unusual Quake II modification called Quake 2 2, which allows you to play a two player Quake II deathmatch on one computer using a windowed mode for each player, somewhat like the split screen deathmatch offered by some console shooters. The newly-released version 1.1 offers support for Catch the Chicken and Quake 2 Basketball, and other mod authors that want the mod to support their work should email kingblake@x-stream.co.uk.