While Performous might be classified as a karaoke program, it is actually much more than that. Instead of just displaying the lyrics, notes are also displayed, and the performance is scored based on how well you actually hit the notes. Unlike in many other games in this genre, you will also see the pitch that you are singing, so you can see what you are doing wrong and easily (well, everything is relative) correct your pitch.
Blob Wars : Blob and Conquer is a 3rd person action shooter. With the apparent defeat of Galdov and the reclaiming of the Fire, Time, Space, and Reality Crystals, the Blobs' battle was only just beginning. Bob had rescued many Blobs and fought many battles, but now he had an ever bigger task ahead of him. The Blobs' homeworld is still littered with the alien forces and Bob once again makes it his task to lead the counter attack. But even without Galdov the aliens are still extremely well organised.
Word War vi is a side-scrolling shoot 'em up '80s style arcade game. You pilot your "vi"per craft through core memory, rescuing lost .swp files, avoiding OS defenses, and wiping out those memory hogging emacs processes. When all the lost .swp files are rescued, head for the socket which will take you to the next node in the cluster.
XPilot is a graphical multi-player maneuvering game with less-exciting graphics, but more speed, tactics, and insults. Some people also use it for UDP network analysis. Over the past eight years of playing and development, tons of features have been added to the game, from basic weapons like shotguns and missiles to more recent ones like phasing devices, invisibility, or hyperjump.
Deliantra is a client for Deliantra game servers. It offers an intuitive user interface for exploring the vast game world, a persistent minimap, powerful macros and keymaps, dialog-based NPC interaction, and easy configuration for the skill, spell, and item system. It is based on Perl, SDL, and OpenGL for high performance on modern systems, and works on both Unix and Windows. Ports to other platforms should be very easy and are underway.