I have mentioned before how I was unable to get Dave Taylor's original port of Doom to work as it was built as an outdated a.out binary rather than ELF. Since then, I stumbled on an article by Jason Heiss that describes how to load the binfmt_aout kernel module to attain a.out binary support, as well as installing packages from earlier Red Hat Linux releases to provide the necessary libraries.
Back when I first played through Quake: The Offering I found that I enjoyed the two mission packs even more than I did the original Quake campaign, and while these were the only official addons sold for Quake, several third party expansions and total conversions exist that also had retail releases. Two of these, Shrak and Malice, were published on CD-ROM in 1997 by Quantum Axcess.
The bedrock of almost all the LAN parties played in my household, Quake III Arena also became a trusty reliable for when I felt the urge for a casual bot match. Whenever I felt the need for a fresh Linux installation, Quake III Arena always became the first game I would reinstall. This had as much to do with the game's technical achievements as my fondness for the gunplay.
During QuakeCon the original Quake got an enhanced edition released, which Nightdive Studios worked on. It works with Steam Play Proton and you can also use the Steam Play tool Luxtorpeda to play the new content on an open source game engine.
In the same vein as Quake: The Offering, the next game in the series got a similar treatment for Linux with Quake II: Colossus from Macmillan Digital Publishing, containing Quake II as well as its two mission packs The Reckoning and Ground Zero.
Dave Taylor can be credited with kickstarting the commercial Linux gaming industry with his ports of the games Doom and Abuse. Before leaving id Software he also graced us with a Linux port of Quake, which was later taken by Macmillan Digital Publishing to form the basis of their retail Quake: The Offering package.