For me it was definitely DOOM 2! Miles ahead of anything else I had played before.
Wolfenstein and Doom of course were amazing of course, but the one that had me floored first I think was BioForge.
First game I saw that used pre rendered 3D graphics and I had just gotten a machine powerful enough to run it.
Chuck Yeager Air Combat…there were torque curves and stall vector charts for all the aircraft and I had no idea what those stupid lines meant…it was amazing lol!
Unreal. At the time Quake II was the most popular FPS and the colors and atmosphere of Unreal really were a new experience. I remember the graphics card wars at the time too. Really fun times for computer tech.
I remember playing online on Unreal Tournament on the first iMac. it was a blast.
I had to stop playing for my parent to make a phone call tho.