NoNewTaleToTell: Skullmonkeys is probably a bit of a nostalgia pick of mine considering it was one of my first games ever, but I still love it haha. It's completely insane, full of charm and made out of clay.
Another (probably nostalgia laced) pick would be GTA 3. Some people say it hasn't aged that well but I still love the heck out of it and think it has the best overall atmosphere and general feel to the world of any GTA game.
Nice choice and especially for GTA 3 although I didn't play it, but the gameplay is amazing for its age.
Ghostbreed: The games I own here ofc:
Blake Stone series
Duke Nukem 3D
Blood
LBA series
And also Tron 2.0, which I own a hard copy of.
I really hope it comes to GOG, since Steam got it and all.
Great, nice to hear your favorite games.