1998 is up there too.

I mean you've got Ocarina of Time, Baldur's Gate 1, Half Life, Banjo Kazooie, Final Fantasy VII, Resident Evil 2, Panzer Dragoon Saga, Sonic Adventure, Pokemon Red and Blue (in the US, Yellow dropped that year in Japan), Goldeneye 007, Metal Gear Solid, Spyro The Dragon, Starcraft, the first Thief game, Xenogears, Unreal (as in Unreal Engine), Crash Bandicoot 3, Gran Turismo 1 (in North America and the EU), Tekken 3, Beatmania, Marvel Vs. Capcom, Mario Party 1, Tribes 1, Star Wars: Rogue Squadron, Need For Speed III: Hot Pursuit (aka the first good one), Fallout 2, Gex: Enter The Gecko, Tom Clancy's Rainbow Six, Castlevania: Symphony of The Night, Jazz Jackrabbit 2...

Suffice it to say that a lot of wildly important game franchises started that year, and several older ones were reborn in 3D for the first time.