Soldier of Fortune II: Double Helix is a first-person shooter video game developed by Raven Software and published by Activision. It was released in 2003 for the Xbox and PC. The game is the sequel to Soldier of Fortune and features a gritty, realistic combat experience. Players take on the role of John Mullins, a mercenary fighting against a global terrorist organization. The game is known for its advanced graphics and physics engine for its time, offering intense and visceral gameplay.