Soldier of Fortune: Payback is a first-person shooter video game and 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. It is the first game of the series released for the Xbox 360 and PlayStation 3. The game was released on 14 November 2007.

After freelance mercenary Thomas Mason is betrayed by his comrade during a mission, he swears revenge against a worldwide terrorist organization that brands all of its operatives with the same tattoo on their necks.