Duke Nukem 3D is a first-person shooter video game released in 1996. Players control Duke Nukem, a tough and humorous character, as he battles alien invaders in a variety of urban and sci-fi environments. The game is known for its interactive levels, allowing players to manipulate objects and use various weapons. The game features a mix of action, exploration, and puzzle-solving elements. It was one of the first shooters to include 3D graphics and voice acting, contributing to its popularity. Duke Nukem 3D has influenced many subsequent games in the genre and remains a classic in gaming history.