
Opinions are subjective, especially regarding video games, but there are some constants. One immutable fact is that Ion Storm's Deus Ex (2000) is the best immersive sim ever made, and some (including myself) would argue, the best PC game of all time, or at least the most influential.
It'll pop up in conversations surrounding iconic PC hits of the past, and it never fails to make me feel like I'm entering my "boomer shooter" era when I remember that it released a few months after the turn of the millennium.