Early 90s DOS games were certainly quite creative. I mentally draw a dividing line between approximately the start of the era when the first Soundblaster became a common thing to find in affordable home x86 PCs, and early CD-ROM based games were also available (1991-1992), and the December 1993 release of DOOM and everything that came after. Very interesting era in the time frame in between there.
Yeah, I remember our high school IT teacher buying a 486sx25 with 8MB and a CDROM ostensibly to explore multimedia in education but mostly to play Myst.
I feel like Mario 64 was another one of those and AAA never really left Doom or Mario 64.
Don't I remember doom developing pretty organically from wolfenstein and a few other (what would now be called) first person shooters around that time? The name "hexen" is coming to mind too. I would put that whole era as the start of something new, so different from the strategy games and side-scrollers that preceded it. Those first person games were the first time I thought computer games were actually more fun than the console systems, which didn't really have anything similar.