Devon Aire in the Hidden Diamond Caper

3D adventure game for Commodore 64, 1988

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An eccentric old millionaire stored all his gems and money in odd places
around his mansion. When he dies, his widow is unable to find any of this, so
she hires master thief Devon Aire to look in the places his criminal mindset
suggests it will be stored.

Each room of the house is viewed isometrically, and contains all the features
you would expect to find in a large house, from cookers and telephones to
pool tables and paintings. Each one can be picked up, pushed, pulled and
used, with the diamonds located in intricate and surprising places.

Due to Mr. Croucher's keen interest in experimental science, there are also
monsters moving through the rooms. Contact with these reduces some of the
energy on one of your 3 lives.

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Some useful keyboard shortcuts
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       [PAUSE] - stop/continue game
          [F9] - quick load game state
         [F12] - quick save game state (still stored after leaving the site)
         [F10] - toggle performance meter
         [F11] - toggle fullscreen mode
  [ScrollLock] - quick switch control ports
    [PageDown] - make a screenshot (320x200)