In different games players could: keep a house that can be decorated as they want
Honestly, it has nothing to do with roleplaying. Actual essence of Rp could be seen only in Planescape:Torment you mentioned and Fallout. Ans that is, I don't remember any other game that has actual RP, not just some bits here in there just to earn "RPG" label.
Never played MB, though.
One of my favorite parts of Divine Divinity was when I marched into a town and had some kid say to me "I want to be a murderer like you when I grow up." That was right before I killed him BTW.
- So, I enter the town and this kid on my way tells me: "I used to be murderer like you..."
- And then he used to be.
