Wait a second, and fatboi?melee.
Unreal, the excellent old first-person shooter from Epic, unleashed what, honestly, was a new level of gameplay and quality in this genre. The graphics are stunning the first real mix of Tomb Raider style graphics with Quake 2 style gameplay, but in an environment that outclasses them both, plus adds in a masterful mix of puzzle elements, intriguing storyline, and an ambience of the best adventure games.
Hearing the "MELEEEEEEE!!' at the end brings tears to my eyes literally.
Shadow of the Mother-Effing Colossus.
Without a doubt my favorite game of all time.
That's my #2. I absolutely adore that game. I replay it once every year or two.
I'll keep coming back to Koholint, even after all these years.
Baldur's Gate II: Shadows of Amn