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This is adventure #3 in Scott Adam's text adventure series. It takes place in a nuclear power plant. You must race against time to fulfill your mission or the reactor may be doomed. You use one or two word commands to move around and manipulate objects.


Secret Mission VIC-20 Title Screen. The game starts by asking if you want to restore a saved game.
Secret Mission VIC-20 Lets see, although it is a cartridge, I need to type in a special number.
Secret Mission VIC-20 Ah, this sounds familiar.
Secret Mission VIC-20 Opening scene. Where are we?

Promo Images

Secret Mission Screenshot in: Game additional material
Secret Mission Screenshot in: Game additional material
Secret Mission Screenshot in: Game additional material

Alternate Titles

  • "Mission Impossible Adventure" -- VIC-20 title
  • "Mission Impossible" -- Atari/TI-99/TRS title
  • "Impossible Mission" -- intermediate name
  • "Atomic Mission" -- Title on Triple Pack cartridge

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When a certain TV show going by the same name as this game threatened legal action, AI was forced to changed the name, hence the vast array of names seen for this game. Because many boxes had already been printed with the now-illegal name however, rather than just junking them, they rather comically covered up the old name with a horribly ugly gold sticker with the name Secret Mission on it. Apparently this was enough to satisfy the lawyers.

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Pseudo_Intellectual (60372) added Secret Mission (VIC-20) on Jul 31, 2006
Other platforms contributed by Trypticon (11031), S Olafsson (36131), Droog (522), Kabushi (209503), Pseudo_Intellectual (60372), Terok Nor (26691), Игги Друге (46434), me3D31337 (61028) and mocagh (2842)