BZFlag is a 3D, multiplayer, tank battle zone, capture the flag game that pits players against each other in a networked environment. It runs on Windows 95/98/NT/2000, Linux, MacOS 10.x, Irix, Solaris, and others. An OpenGL accelerator is highly recommended, but it is playable with 3D in software.
Nuts & Scrap is a platform arcade game with some touches of a graphical adventure title. It features two fearless robots whose mission is to save the human race, which is endangered by an evil doctor trying to take over the world. The game sports fun 3D pre-rendered graphics and a spectacular sound track. It has won a prize from the "Art Futura & Sony Playstation" game development contests.