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Commander Keen's very first adventure, and the debut of id's groundbreaking side-scrolling technology. In the game you play the role of Commander Keen: the alter-ego of an eight year-old genius by the name of Billy Blaze. When Billy learns that the Earth is in danger, he dons his brother's football helmet and his homemade interstellar spaceship to become Commander Keen -- Defender of the Earth!
Also known as: Commander Keen: "Invasion of the Vorticons" - Episode One: Marooned on Mars, Commander Keen 1: Marooned on Mars
Commander Keen in Invasion of the Vorticons: Marooned on Mars was released on December 14, 1990.
Commander Keen in Invasion of the Vorticons: Marooned on Mars is available on DOS.
No — Commander Keen in Invasion of the Vorticons: Marooned on Mars is a single-player game.
Commander Keen in Invasion of the Vorticons: Marooned on Mars was developed by id Software and published by Apogee Software.