I don't really think DS or PSP titles should get excluded so I'll list them. And you can exclude them if you wish.
1) Dead Space
By a lot :D
2) *The World Ends With You
3) Mass Effect
4) Demon Soul's
5) Gears of War
6) Does Bioshock count. Isn't it a spirtual successor to system shock? I listed another in case
7) Little Big Planet