Vavoom is a source port based on sources of Doom, Heretic, Hexen and a little
bit from Quake. To play Vavoom you need main wad file from Doom, Ultimate
Doom, Doom II, Heretic, Hexen or Strife.

Differences from original game:

* Polygonal engine with colored lighting, with software mode, OpenGL support;
* Translucency;
* Complete support for freelook (look up & down) in all games;
* A powerful language to describe game logic;
* 100% client/server architecture with in-game joining;
* Quake-style console, with key bindings;
* Indirect support for DeHackEd;
* Crosshair;
* Jumping;
* And many other cool things...

WWW: http://www.vavoom-engine.com/