1. You can explore doing stuff like an ordinary joe. I wandered to different locations and just chose jobs I felt like. Ask the Taverner, ask the jarl`s adviser. After a while I felt pretty much like a freelance merc.
2. You will random bump into stormcloaks or Empire soldiers who`ll advise to join their side. Nice.
3. Random dungeoneering is pretty cool. I like the waffles of bandits if you creep and listen. some of it is quite specific. for instance, after killing a guy guarding a dungeon I sneaked in and another bandit was saying, "Don`t you think someone might just wander in here?" After I went to the next section, more bandits came out and one said,"I thought someone was supposed to be guarding the entrance" Which I thought was pretty realistic.
4. Khajitt sales vendors seem to wander from place to place more.
5. No one seems to screw up the speech so far concerning Dragons. They talk of rumours of Dragons after Helgen, but say nothing to do with later attacks. In medieval reality people spoke of Dragons even when none ever existed so that`s ok.
6. Plenty of random encounters ( I don`t fast travel) to keep you interested. i even found knew ones I never met in my previous game like the random warrior who insults me and wants a fight for no reason at all.
7. The detail of some things. Birds suddenly flying throw the trees and nesting, random wandering creatures like deer. And butterflies that mate! Yep mate. If you watch some of them really close, two of them will fly and just get together. It`s what butterlies do in real life and it`s called mating!
I guess that don`t require an advlt rating! LOL.
This is a HUGE world and is quite atmospheric when travelling by foot everywhere.
Now there are lots of stuff I find half done, but what is done is done very well.

I suppose that's a side effect for having the butterflies being interactable, but still hilarious 


