Bit hard to narrow it down… what do you enjoy? And have you played much from that era?
Just off the top of my head… simcity 2000, Ultima 4,5,6,7, the quest for glory series, civilization 1 and 2, fallout 1 and 2, xcom, master of orion… there are a ton of classics that are still worth playing.
For something perhaps a little less popular, maybe try Tex Murphy?
Edit: oh, I just remembered Commandos! if you’re a masochist, anyway. That game is hard as balls. Fun, though.
Great list - these are all worth checking out. Some of these games I spent way too much time playing.
I think Ultima 7 is probably one of the best RPGs of the 90s. Ultima 6 might have been the first to ‘clutter your entire world with junk’ game, but was both beautiful and massive for its time (though 7 did everything better).
It’s hard to go wrong with most of the classic Sierra games, though the text entry ones are in a special difficulty level of their own. King’s Quest series. Conquests of Camelot was enjoyable. Colonel’s bequest. Space quest series.
The Kyrandia games were enjoyable but I played them not too long ago.
I remember enjoy star trek 25th anniversary.
Tyrian 2000 is an easy choice given it’s permanently free on GOG. It’s a really fun old shmup with story and arcade modes, lots of difficulty settings (look up cheat codes if you need to make it harder) and a pretty solid amount of weapon customization. Still very much holds up today.