An Anonymous Coward writes: "Saw this over at vrsource.org. Paul Rajlich has released CAVE Quake III Arena (cq3a). cq3a is a Quake3 engine that runs in VR environments from desktop HMDs to high-end multi-wall projection systems like the CAVEs and fully-enclosed C6. The original announcement is here. There is also an article describing what he had to do. The main cq3a page is here at visbox where you can download the code for multiple environment types (VR Juggler, CAVElibs, FreeVR, SDL, GLUT, and GLX). It currently runs on Linux, Irix, Win32, MacOS, and FreeBSD. You also have to check out the cool pictures on the site."