Input (grade 12): LameDuke is an early beta version of Duke Nukem 3D, which was released by 3D Realms as a "bonus" one year after the release of the official version.
Output (grade 12): An early beta (testing) version of Duke Nukem 3D called LameDuke was released by 3D Realms as a "bonus" one year after the release of the official version.