BZFlag - 1.7b build 18 

BZFlag is a great, very fun tank game! Just try and capture the flag. This is a highly customizable game with some cool game-play options. Another great feature of this program is that is can be played cross-platform, from Linux to Windows and vice-versa! We had a lot of fun here in the office trying to blast the guys from Linuxberg into next week!

DemonStar - 3.0 

DemonStar supports multi-player Net play. It works with any Direct Play server, or you can launch the game through ICQ. Demonstar features force-feedback joystick support. This game rocks!

Iron Wolves - 1.28 

Iron Wolves is a graphical 3-D multi-player real-time WWII Submarine simulator. You play as a commander of a U-Boat, Corvette, Tanker, or even a Destroyer. This is a membership-based game to play, but it is well worth the money.

PBTerm - 1.72 

PBTerm is a terminal-based graphical paintball game. You can buy improved paintball guns, camouflage, etc., but PBTerm is difficult to control.