Im assuming its retail games only list. Xbox live needs another list.
1. Halo 3 - you had to get it in 2007 to get most out of it though. the community is not as good now
2. Bayonetta - runs better on 360 so it gets my nod as must buy on that console
3. Condemned: Criminal origins - best survival horror game this gen, and should be cheap
4. Forza 3 - the only racing game you will need on the 360
5. Halo Wars - best RTS on consoles
6. Mass Effect trilogy
7. Halo Reach - not as good as 3 overall but a better campaign
8. Gears of War 1 - solid cover based shooter.
9. Crackdown - cheap and fun
10. Earth Defence Force 2017 - some love it, some dont. Should be cheap







