Twilight;
You can just start your own topic (there isn't an existing one). Joram started the DKS nightmare topic, and has a couple topics for different characters in Divine Divinity.
Demonic;
Killing most non-essential friendly NPCs in Divine Divinity (essential ones should be protected) results in a reputation drop (at least if you use direct attacks), which can eventually have serious consequences.
You can not pick up any object, though there are a fair number of useful and not useful objects that you can move or pick up, and others you can interact with. In general there is more world interaction in DD than DKS.
I liked in DD that NPCs would react to you stealing their stuff (or in some cases even approaching certain areas or moving items). There was an easy exploit to get around that, though, and at least with merchants a way to avoid negative consequences of getting caught.
Of course, in DD no matter how powerful your character becomes, their path can be blocked by a two foot high ledge.
