reading this thread i had to admit that i really have a lot of games i really loved to play (and still do).
the gta series
enemy territory
star craft with and without broodwar
war craft
the need for speed series
and many many more
i started gaming early (my first computer was an very old one, a present from one of my mums' friends ... i must admit that i dont know the name, which makes me very sad

) and played a lot of games, so the list could be endless ^^