Ergo Epsilon

This 2002 Xbox-exclusive Buffy game (not to be confused with the later "Chaos Rains" Buffy game) still stands the test of time today (2019). The graphics hold up, the dialogue is interesting, funny, and it feels natural (plus it's full of 2002 era slang). The game also features a simple-to-use, yet ridiculously in-depth combat system, to the point where even I don't think I've discovered all the moves yet. If any old original Xbox game deserves a remaster or at least a port to the newest consoles (and PC): It's this one.