Diablo 3

[Vash]

The setting would change depending on the Class you chose. For example, if you chose the Paladin, your quests would revolve around the Zackarum Temple-type theme. If you chose the Amazon, your quests would revolve around that...

This would ensure a completely different playing experience depending on the class you chose, instead of playing the same acts with different characters.

That sounds really neat...

Maybe that'll happen for the first few acts and then all characters will play a common final act.

Ooh ooh...maybe it can go something like this:

Some new evil has been unleashed and is wreaking havoc on all parts of the world. Each character starts out as a young apprentice who spends the first few acts ridding his homeland of evil. After that, the elders send him/her to go after the evil itself (the common act).

That's neat...