Undead

Undead assaulting the walls of a castle.

Unliving creatures are animate things that are not alive. They do not possess a LifeForce. While still vulnerable to normal damage, Unliving creatures are unaffected by certain forces that can have a damaging or controlling effect on living creatures, such as suffocation, poison, or psychological manipulation.

Undead are Unliving creatures one step more removed from living creatures, going so far as to possess an anti-LifeForce which reverses many of the effects a living creature might benefit or suffer from.