Duke Nukem 3D is a first-person shooter game that takes place in futuristic Los Angeles. Aliens have invaded the city, and it's up to Duke to stop them and show them the door. The game features a mix of action and interactivity, with Duke able to break or interact with many objects in the environment.
The gameplay is fast-paced, with Duke having access to a wide range of weapons, including pistols, pipe bombs, and rocket launchers. He can also use his foot to kick enemies and has various power-ups, such as medikits and steroids, to enhance his abilities. The game includes 28 levels, divided over three episodes, set in locations such as streets, buildings, and futuristic environments.
Enemies include aliens, mutated humans, and even police officers who have been turned into Pig Cops. Duke also has access to special items, such as night vision and a jetpack, which can be used to navigate the environment. The game includes puzzles and secret areas that require problem-solving to access.
The Sega Saturn version of Duke Nukem 3D features network play through IPX protocol for deathmatch and cooperative games. However, the Sony PlayStation version adds a new episode called Plug 'N' Pray with seven levels, new enemies, and rearranged music.