here are mine,without cheats.
1.Mafia
2.Gta VC
3.Gta 3
4.Splinter Cell
5.Medal of Honor
6. Max Payne
7.Freedom Fighters
8.Commandos 2
9.Need for Speed Underground
10.Roller Coaster Tycoon
11.Halo
More, but either they are too old or not worth mentioning like Virtual Pool 3 etc...