Simple but effective mechanics. Endure as a resource for actions and HP sounds scary in gameplay. Attrition is never a good idea, and wants you to be smart or be quick about your actions.
Great theme and mechanics!
Thanks!
I am glad it seems scary - I want the players to feel tense and uncertain about their survival. Also, the way I run it, characters can die at any moment - if you get shot in the head, you die. Having Endurance to spend might help you avoid being shot in the head, but once it hits, the character's gone :P