"Soldier of Fortune: Payback is the third installment of the Soldier of Fortune game series. Unlike the previous two Soldier of Fortune games, which were developed by Raven Software utilizing the Quake 2 and Quake 3 engines, Payback was developed by Cauldron HQ, developed with Cauldron's in-house CloakNT engine, used in their previous First Person Shooter game, Chaser. This game is the first game of the series released for the Xbox 360 and PlayStation 3. " Source: Wikipedia, "Soldier_of_Fortune:_Payback," available under the CC-BY-SA License.