[int_19h]

QuakeC was powerful enough to create mods like Quess (https://www.youtube.com/watch?v=TD2Qz_hH2U4) and Quake Rally (https://www.youtube.com/watch?v=Fg0hTSLE-NM). Although the latter was really pushing the limits of the engine.

And lest we forget, Reaper Bot, the thing that made PvE deathmatch a reality.

To this day I'm amazed that so much cool stuff was done in QuakeC despite the language not even having arrays...