StarCraft: Brood Wars. - Made eSports a thing and was a sport in South Korea.
It's pre-rendered 2D assets scaled up fairly well as well. - Obviously you have the remaster now which cleans the image up a lot.
Homeworld 1. - For a game that released in 1999, it still has times where I go 'wow', that looks great.
It is probably -the- best looking full 3D game from the 90's in it's vanilla form... And it's gameplay is still rock solid and has aged well.
--::{PC Gaming Master Race}::--