This is the retail version of the original Commander Keen trilogy. You play the role of Billy Blaze, an 8-year old superkid who dons his brother's football helmet and becomes Commander Keen - Defender of the Earth. This trilogy is comprised of the episodes: Marooned on Mars, The Earth Explodes and Keen Must Die! In each game, Commander Keen battles aliens and monsters, wanders through mazes and solves simple puzzles to complete levels. All 3 games are based on the same classic EGA scrolling platform game engine, so the gameplay is consistent through the series. Each of these games is featured here independently.

This is the retail version of the original Commander Keen trilogy. You play the role of Billy Blaze, an 8-year old superkid who dons his brother's football helmet and becomes Commander Keen - Defender of the Earth. This trilogy is comprised of the episodes: Marooned on Mars, The Earth Explodes and Keen Must Die! In each game, Commander Keen battles aliens and monsters, wanders through mazes and solves simple puzzles to complete levels. All 3 games are based on the same classic EGA scrolling platform game engine, so the gameplay is consistent through the series. Each of these games is featured here independently.