Dead Dozen

"DEAD DOZEN is a Multiplayer Action Horror Game where you turn into a ghoul after your death as a human. Loot, barricade and cooperate when you play as a Survivor or infiltrate, infect and eat your former human friends when you play as a Ghoul."

"In 1993 a strange group of 12 people is entrapped by mysterious force inside the abandoned Soviet research base deep in Siberia..."