[Warrior of the Light]

Games that wasted the most of my time:

C&C: Red Alert 2 (with Yuri's Revenge)
NFS 4 and 5 (car handling is more important than graphics IMO. The control you have over a car in those games just owns any other racing game)
Super Mario 3 (for the NES)
GTA Vice City (all others suck)
Jazz Jackrabbit 2 (great music)
Stunts (creating impossible tracks is still cool)
Commander Keen 4&5 (well, you have to know all secrets, right?)

I'm now playing Deus Ex again. It still rocks