>>8315346yeah. there's a weird system where dying/making it to shelter with enough food moves some slider up or down and the gates can only be passed through if the slider is at a specific amount. so if you want to get from area A to B you might need to keep getting up, finding food, then running back to the checkpoint or might need to go out and die a couple times
that's my understanding of it now at least. i haven't run into it too much yet or looked anything up