What kind of games do you want? rpg? startegy? sim? sport? ....
I have some sugestions:
rpg--> baldur'gate1+2, icewindale1+2
strategy--> command and conquer series, warcraft serie, starcraft
If you really like hack and slash (like the wastelands) Diablo1+2
Some others--> carmageddon 1+2, gta reeks, Unreal tournament (2003), MOHAA?
If i think of others i'll let you know <img src="/ubbthreads/images/graemlins/wave.gif" alt="" />