There are so many people in Skyrim that can't be killed that half the town would still be alive when I was done. Yes you get endless guards but it's crazy how many NPC's are marked essential even after the quests they are involved with are completed. Brynjolf in Riften couldn't even be damaged. I couldn't do anything to him at all, not even drop him to one knee. WTF? I didn't think it would be this bad. They just made the game world way too safe. It's stupid. You PC guys are so lucky that you have the ability to turn all that crap off. Hopefully one of these days I'll be back on board with a decent PC but for now I'm stuck with this. It's just frustrating. I don't understand why they made so many people unkillable especially once you've completed their quests. It's just no fun at all making a really evil character in this game.