The spear wielding soldiers who guard Grimrock are now long perished but that does not stop them from fulfilling their oath to protect the place from all harm. Undead soldiers are usually encountered in military units and they are equipped with large shields that protect them from damage. As they don't have internal organs and they don't need to breathe, Poison is not an effective weapon against them. They can show up in groups of up to four.
Legend of Grimrock 2Edit
Between their appearance and their stats, the undead warriors have undergone many changes between games. Equipped with axes instead of spears, individual soldiers can swing their weapons as they turn. They can still appear in groups, though only in pairs. Once again, they are completely immune to Poison, but they now display a weakness to Air Magic.