3D Realms sues Gearbox over unpaid Duke Nukem royalties, Gearbox responds

Gearbox took over and resumed development of Duke Nukem Forever in 2009, eventually completing the project that 3D Realms had spent nearly 15 years developing. 3D Realms now seeks to recover over $2 million, claiming that Gearbox blocked an independent audit attempting to document the company's royalty earnings from Duke Nukem Forever.