Thread:Vorknkx/@comment-3547390-20150204202730/@comment-1496755-20150423085621

As far as I know, it's more like a heavily modified version of the original Quake engine.

The most significant changes include:
 * Software and Gl renderer are now in the same executable (not two separate ones as in Q1).
 * Gl renderer has colored lighting.
 * Full skyboxes
 * Rotating skyboxes in Gl renderer (used for space-themed maps)
 * Better transparency effects in Software renderer (for water)