Late to answer, but for me the answer was literally to save VERY often and reload if the cat died.. I was careful to keep him out of fire patches and poison.. He only died once.. My main character was a ranger so the cat was following her and out of much of the close up melee fire clouds.. I was able to heal him if he got damaged too much using first aid skill..
Last edited by Azurinna; 31/03/21 06:09 PM. Reason: forgot about healing the cat