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Commander Keen: Marooned on Mars
DOS · 1990 · Platformer · by id Software / Apogee Software
Click the screen to capture the mouse; Esc releases it. Sound on for the full effect. First load can take a few seconds — the emulator runs entirely in your browser.
About this game
Billy Blaze — eight years old, genius, owner of a spaceship built from soup cans — defends Earth before bedtime. Episode 1 of Invasion of the Vorticons: the shareware episode that launched id Software, shared exactly as Apogee intended.
SOURCE — obtained from DOS Games Archive
LICENSE — Shareware episode — the complete first episode ('Marooned on Mars'), produced by Apogee/id Software for free distribution.