Wound Management
Wound management is one of the survival layers in Nakwon: Last Paradise. MINTROCKET has publicly described the system as requiring players to tend to wounds before they become fatal, sitting alongside the infected and hostile players as things that can kill a run.
Mental Stress
A parallel mental stress meter is layered on top of physical health. A character under heavy stress performs differently than one who is calm, which is another reason to manage engagements rather than brute-force them.
Why It Matters
Both systems make 'surviving the night' a continuous activity. It is not enough to reach the extraction point; the character has to still be functional when they arrive, and both physical wounds and mental stress can degrade that functionality on the way.