Doom II RPG is a first-person shooter role-playing video game, the sequel to Doom RPG. It was released for mobile phones on November 23, 2009 and for iPhones on February 8, 2010. Versions for BlackBerry OS and Windows Mobile are also available. It uses the Wolfenstein RPG engine and was developed by id partners Fountainhead Entertainment via the merger id Mobile. The iPhone version of Doom II RPG contains a digital comic book.

Doom II RPG is the sequel to Doom RPG, set one year after the first game. While there's not much known about the monster invasion in UAC bases on Mars, another monster invasion happened on Earth's moon. A team of soldiers accompanied by a scientist have ventured to the UAC bases on the Moon to investigate.