I really liked FPSs back then but now I'm looking more for good adventures in a 3D environment. Shooting and running all the time is pretty tiring.
Some games I like:
• Beyond Good and Evil
• Gothic 1, 2 + NdR
• Psychonauts
• Arx Fatalis
• Penumbra
• Clive Barker's Undying
• Aquaria
• Thief: Deadly Shadows
• Startopia
• Call of Cthulhu: Dark Corners of the Earth
• Evil Twin: Cyprien's Journey
• Wario Land