: A more performance-oriented engine that includes fixes for modern high-resolution monitors and better mouse input. 3. Digital Versions
Updating your game to the latest official version is the standard method to enable play without a CD. Download the Point Release 1.32 Quake 3 Arena No Cd Patch
If you lost your key, you may need to re-install or use a source port like ioquake3, which manages keys differently. Important Notes Digital Version: Quake III Arena : A more performance-oriented engine that includes fixes