Duke Nukem - Zero Hour (Europe) (日本語タイトル: デューク・ヌケムゼロ・アワー) is a first-person shooter game developed by 3D Realms and published by GT Interactive Software for the Nintendo 64. It is the sixth installment in the Duke Nukem series. The player takes on the role of Duke Nukem, an action hero who must battle aliens and monsters in order to save the world. The game features a variety of weapons, including pistols, assault rifles, rocket launchers, and the famous 'Freezethrower'. The game also features a wide range of enemies, including aliens, robots, and mutated creatures. The game features a variety of levels set in different environments, such as urban areas, laboratories, and space stations. Duke Nukem - Zero Hour also includes a multiplayer mode, allowing up to four players to battle each other or cooperate in completing levels. The game was critically acclaimed upon its release, with critics praising its graphics and gameplay.