slackbuilds_ponce/games/nexuiz

Nexuiz is a fast paced 3d deathmatch game project created online
by a team of developers called Alientrap.  It is based on the
open-sourced Quake engine.  Nexuiz is a standalone game that can
be played locally or over the internet.  It is completely open
source and actively developed.

Note: The source download is about 660M.