BRender from Argonaut is the fast 3D graphics software behind a number of
games including the famous 'FX Fighter' on the PC.

There are five demos accessible by a seperate installation menu:

Reflections demo - illustrates BRender's environment mapping capabilites.
BROOM - a 'thrown-together' version of a 3D game.
BRender in Space - fly around and shoot big rocks.
Fly - illustrates BRenders terrain-mapping capabilities. Fly a UFO.
SpaceRig - explore a deserted space station.