Duke Nukem Forever

Duke Nukem Forever is a 2011 first-person shooter game developed by Gearbox Software and published by 2K for Windows, PlayStation 3, Xbox 360 and Mac OS X. It is the fourth main game in the Duke Nukem series and the sequel to Duke Nukem 3D (1996). Players control Duke Nukem as he comes out of retirement to battle an alien invasion. Like its predecessor, Duke Nukem Forever features pop culture references, toilet humor, and adult content. Duke Nukem Forever began development under 3D Realms and underwent a protracted development that lasted 14 years. Announced in 1997 following the success of Duke Nukem 3D, it was delayed several times, which was attributed to engine changes, understaffing, and a lack of a development plan. After 3D Realms downsized in 2009, Duke Nukem Forever was finished by Triptych Games, Gearbox Software, and Piranha Games. It holds the Guinness world record for the longest development for a video game. Duke Nukem Forever was released on June 14, 2011, and received mostly unfavorable reviews, with criticism for its graphics, dated humor and story, simplistic mechanics, and unpolished performance and design. It did not meet sales expectations but was deemed profitable by Take-Two Interactive, the owner of 2K Games. An additional episode, The Doctor Who Cloned Me, was released as downloadable content later in the year.