Quake III Arena is a multiplayer-focused first-person shooter video game developed by id Software.
external image 250px-Quake3Title.jpg
Frédéric Lauzon
MS Windows
Mouse & keyboard
Razer Hydra
Release date
April 29, 2013
First person shooter
Single-player, multiplayer



vrquake3 is a modification of the ioquake3 engine to support the Oculus Rift with Quake 3. It's not going to be compatible with ioquake3 anymore, since changing gun configuration or some rendering is considered cheating by the servers.

Notable additions :
  • the player model is viewable in first person view (viewing hands/ feet/ torso) ;
  • the position of the gun is shown where the hand of the player actually is ;
  • handle collision with walls when the head is looking down ;
  • handle weapon collision with walls, it backs up when hitting the wall instead of going through it ;
  • fix cinematics not rendered correctly ;
  • bigger console fonts to be readable on the Oculus Rift ;
  • creation of a DLL to bridge the calls for the Oculus and Sixsense SDKs ;
  • head tracking ;
  • Razer Hydra support with independent weapon aiming ;
  • stereoscopic rendering with warping ;

Todo list :
- proper realism scaling, right now it's not very immersive because of the incorrect scale ;
- friendly VR user interface.


The Razer Hydra must be disconnected to use the mouse.
The zoom function doesn't work.
Looking up and down is only possible with the head-tracker and not with the mouse.

Launch instructions

The game must be launched with the RUN.bat file found in the workdir directory and with the provided q3config.cfg. If it's not launched with the proper command line the q3config.cfg will be overwritten and it won't work anymore.


The modifications to the ioquake3 engine can be found with the //*** comments, the author used them as bookmarks to quickly find items in the source.
The added console variables haven been prefixed with vr_.


In the media

Quake 3 Got Rifted! at MTBS3D

Relevant forum threads

Quake3 - Ready for VR at MTBS3D
Quake3 - Ready for VR at the unofficial Oculus Rift forum

External links

Official website
Quake III Arena at Wikipedia