Trivia: Quake I
- Hey, It's That Sound!: The "get key" sound effect is identical to the one from Golden Eye 1997.
- Killer App: It was already this to begin with, but when GLQuake was released, 3dfx Voodoo Graphics accelerators started flying off the shelves, now that people could suddenly play it at 640x480 resolution (at a time when people were content with 320x240 on the software-rendered version because higher resolutions were too demanding) and still maintain a liquid-smooth 60 frames per second!
- Note that VQuake for Rendition Verite cards predates GLQuake, but did not result in massive success for Rendition like it did for 3dfx.
- GLQuake was allegedly developed to run on id Software's workstations with no intentions of running on consumer PCs, but by coincidence, the 3dfx Voodoo Graphics card handled it very well, and so they made it available to consumers anyway. The rest is history.
- Milestone Celebration: For Quake's 10th. anniversary, Id released the source code for the maps themselves under the GPL license.
- Pop-Star Composer: Trent Reznor of Nine Inch Nails composed the score for Quake. The game includes a nail gun weapon with ammo packs featuring the band's NIN logo.
- Promoted Fanboy: id hired some of the best level makers to their team (most notably American McGee), and several of the creators of the various Game Mods or tournament winners below have gone on to jobs in the industry. Additionally, part of the reason Trent Reznor was hired to do the music is because he was such a huge fan of Doom.
- What Could Have Been: The game began its development as a large, free-roaming Role-Playing Game, starring a titular barbarian hero who would bash his way through his enemies with an enormous, Mjolnir-like hammer. (Which was brought back for Scourge of Armagon, though it wasn't developed by id) However, this idea (and eventually the whole RPG setting) was scrapped, and instead, they switched to a more Doom-like FPS direction while keeping the original level design, just like id's previous FPS boomfests.