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You can start playing right now: https://archive.org/details/msdos_Commander_Keen_1_-_Marooned_on_Mars_1990 https://archive.org/details/msdos_Commander_Keen_1_-

• thristian 3y ago
  The Internet Archive's browser emulation is an excellent way to scratch a nostalgic itch over a lunch-break. If you'd like something a little more local, Commander Genius¹ is an open-source engine that plays all the Keen games (and apparently Cosmo's Cosmic Adventure, too). ¹: https://clonekeenplus.sourceforge.io/index.php https://clonekeenplus.sourceforge.io/index.php