well of course you'll need gold, name a game that doesnt to play multi-player lol
1.
Mass Effect - Xbox 360
The best RPGs are played alone.
2.
Dead Rising - Xbox 360
On your own in a zombie-filled mall. Otis doesn't count.
3.
BioShock - Xbox 360
Explore the mysteries of Rapture without any help.
4.
Pac-Man Championship Edition - Xbox 360
The best Pac-Man ever is also the most solitary one.
5.
Prototype - Xbox 360
You're mutated, and everyone's against you.
6.
Dead Space - Xbox 360
Your trip through the Ishimura is scary and solitary
Correct me if I'm wrong but, I think these are all SP only games.