Most of the game modes were based on or inspired by these Quake mods:
CRMod by JP Grossman and Paul Baker
Threewave Capture by Dave 'Zoid' Kirsch
Rocket Arena by David 'CRT' Wright
Clan Arena X by r00k and BAM
Rune Quake by David 'Slot Zero' Roberts
Kombat Teams by kemiKal_sWeMoB, Cenobite and Fang
Super Smash Quake by Garrett 'Kovaak' Krutilla

Additional programming and design by kilomiles, r00k, woods, DanTheMan, ceeKay, xstephx, ef3ss, Spike, bosh, inf1niti, [sh] Levon, Reki, JPiohlo and the players at the QE Discord

Thanks to everyone who helped test: unspoken, frenzy, B4CT3R14, m0ns, Stedanko, Mr. Fancypants, jbone, Hypher, powerzord, chr1s, undertow, Brainstencil, Lucky, Quickdraw, Coocoo, Plank, derelict, Captain Mutron, Squid N Troll Octopus, Corpus Callosum, nintendo, Toxic, ACheesecake, Elnatrailer, Antimatter

Special thanks to id software and to r00k and Spike for years of contributions to the Q1 community