Leroux: Ok, I'm using a broader definition of classic games here, some of them are from 2k+, but still a bit older now.
Adventure games: Sam & Max Hit The Road? In that case you might also enjoy
Day of the Tentacle, if you haven't played it already. And maybe the
Monkey Island games (although personally I don't really like the Special editions available here).
FPS: I suppose you've also played
Doom &
Doom 2? If not, those are obligatory! ;) Other than that, I quite like
Outlaws, too (spaghetti western FPS).
Action Adventures / TPS: Psychonauts (it's usually very cheap during sales). Maybe
Outcast or
Prince of Persia: The Sands of Time? I'm quite fond of
Enclave myself, but it's not to everyone's taste (and I recommend playing on Easy difficulty for this one, even if you usually choose higher difficulties).
You didn't list RPGs under your favorite genres, but if you're at least open to action-oriented 3D RPGs, I recommend to try V
ampire the Masquerade: Bloodlines and
Arx Fatalis.
rpgs are one of my favs so its cool ive played doom its good...ive beaten prince of persia sands of time on playstation 2 really cool game had some replayability for me i'll give psychonauts a go since its one of the games i was supposed to check out in my digging around as well. Enclave? hmmm i'll check it out as well and as for Vampire Masquerade...someone told me it was good and someone told me it was crap sooo i guess i will just have to play it for myself.. thanks for the recommendations hope you enjoy the rest of your evening/day =)