Game: Dead Space 2 (2011)

The Marker of Dead Space 2 takes this survival horror from nightmare to full-blown head-trip. After Isaac has fought his way through the Necromorph infested colony, he must enter his own mind and start a battle with the focus of his enemies' belief and leadership – the Marker. The Marker attacks with waves of shadowy creatures and the twisted shade of Isaac's dead love, Nicole. It's a great way to give players a shot at experiencing true horror.