glquake - Binary code for the game. Designed for use with specific graphic cards. - http://mfcn.ilo.de/glxquake
Quest Linux - Contains information about a Linux port of a DOS-based Quake level editor. - http://www.informatik.rwth-aachen.de/I6/Colleagues/kanthak/Quest/quest.html
TextMode Quake - Quake for console freaks and the X-impaired. - http://webpages.mr.net/bobz/ttyquake/