The alignment system

One of the most interesting features of this game to me is the proposed alignment system. Character alignments will actually change to match your ingame behaviors: If you go around murdering strangers or animating dead, you will become more Evil, and if you break contracts or rob merchant caravans you will become more Chaotic. 

Combine that mechanic with the one-step restriction on settlement membership- you cannot join any settlement or nation unless your alignment is within one horizontal or vertical step of their alignment- and what you will see is that players are naturally grouped by the alignment system into groupings that actually play the game in similar ways. When you see a player flying the city crest of a Lawful Good settlement, that will tell you something useful: not just about how he has imagined his character concept, but about how he objectively behaves in the game world.