Happy 20th Birthday, Quake
I remember when QTest hit the internet, it was beta of sorts to help test network play (and the whole engine, I guess). Even though it was only 3 levels, I was blown away by the lighting of the players weapon when you rotated, the SVGA modes...Did they release screenshots in 320x200 because that was the lowest common denominator resolution? Windows 95 was out at the time so I know people would have been able to view 640x480x256 screenshots.