Originally posted by Vinegaroon:

My original post is satire, but you know now I am genuinely curious now. How long could one go with no death at all. Like a hardcore play through.

I've killed all 5 bosses with no deaths on a play through so you can get all the way. You do need to be cautious, always have Potions and Bonemass at the ready and before that Eikthyr so you can just escape. Also try and get enemies to fight each other especially growths on the plains as it is much safer to set them off against fulings or lox than fight a bunch of them direct. Also much easier solo as enemies have less health so you can for example one shot normal Fulings from a distance, which makes it possible to take out villages without fighting the entire mob in one go.
Personally I like the challenge, sense of achievement and thrill of the close calls when there is a real consequence to your actions. That said I have had to restart quite a few games, mainly to starred skeletons when raiding my 1st tomb.
I do play the game with mods although the only difficulty effecting mods are glutton (which just auto eats so you don't need to remember to) and one that lets you take metal through portals. So not sure it counts from a purists point of view, but it works for me. After that I have tried to repeat the challenge a few more times and currently just have the last boss to find. Although I am also slightly more forgiving on myself now as I did choose to ignore a death by falling while messing around repairing a non essential base out of combat. Something other than gravity kills me and it's still game over though and start again.