Carrion
Arcane
The Thing was a terrible game with some neat ideas, one of them being the morale system. If you, say, took a weapon from a party member, his trust in you would decrease, and low-trust party members might refuse to take orders from you or even attack you. Build enough trust (give them a gun and some ammo, heal their wounds, use a blood hypo on yourself to prove you're not the Thing), and they'd follow you to hell without giving it a second thought. Being subjected to horrific stuff might also cause your party members to panic, making them miss their shots, lowering their general effectiveness and in extreme cases causing them to either kill themselves or die of a heart attack.