MMO: Diablo II RPG: Legend of Dragoon. FPS: 007 Goldeneye (N64) RTS: Tie between Starcraft and Warcraft 2 Tides of Darkness. Fighter: Tekken 3
MMO: RF Online, Planetside FPS: CoD4 and Halo 2 RPG: Mass Effect RTS: Rome: Total War Fighter: Street Fighter Alpha 2 FPSRPG: Riddick: Escape from Butcher Bay (amazing game, awesome story... can't wait for the remake.) Heh, I actually know what game you're talking about.
FPS: Command And Conquer Renegade. There are STILL server up and people playing on them. Strat: FF tactics. The one out for the PSP made an amazing game even more AWESOME. RPG: Crono Trigger, classic awesomeness Action Adventure: The Devil May Cry series. FPS RPG: Fall Out 3 Fighter: The Soul Calibur Series MMORPG: Everquest before the planes of power expansion, and EQ2 currently (my avatar is the symbol for the assassin) Was also big into Phantasy Star Online still have an account with all the expansions for the 360 just not subscribed.
Here's my list. RPG: Final Fantasy 7 MMO: Guild Wars Fighter: Soul Caliber II Strat: Ages of Empire II FPS: COD4 Survival Horror: Left 4 Dead Action RPG: Diablo II SIM: Mechwarrior 4
Technically GW is, though instancing in places and no subscription fee distances it from others. Diablo 2 is entirely instanced and can be hosted on the local machine, so it's not.