1)no fast traveling
2)Night time is extremely dark and more dangerous
3)must eat, drink water and sleep to survive
4)A auto save system, like dark souls, where you can't make safe saves all the time and there is only one save slot you cant control.
5)difficulty setting is fixed to the hardest setting.
6) only able to carry around 70 pounds.
7)weapons and armor need to be maintained.
8)when you die every thing is dropped and you re-spawn at near by camp sites in ragged clothes. You must get to the spot were you died to pick up you stuff before you die again or you lose everything.
9)health does not regen.
10)stamina deletes when you walk or does not regen when you are blocking.
11)No map, and limited Hud, I'd still like the cross hairs however.
12)Injuries to specific areas of the body, (like fallout)
13)cant use food in a fight to heal
well thats my wish list, what would you guys like to see if there was a hardcoe mode option?