Stuck on top of the Tower of Mystery, you must preserve your strength and protect the treasure as you attempt to escape.
Intellivision Productions owns the prototype of this game. A description of the game from Mattel's 1983 CES press kit reads: 'Stuck on top of the Tower of Mystery, you must preserve your strength and protect the treasure as you attempt to escape.'
An early working title was 'Dungeons and Dragons III'. This was to be one of the 16K Super Cartridges with 2K of onboard RAM, and having 8 different types of screens. A 1984 press release catalog stated this was under development for release in 1984. Unfortunately, Mattel Electronics closed in January 1984, one month before the scheduled completion of the game. The game was one of only six Atari titles officially still in development at the time of the closing. All that survives is the demo shown at the January 1984 CES in Las Vegas, and later at CGE99. Unfortunately, due to copyrights (TSR is now owned by Wizards of the Coast), the ROM for Tower of Mystery cannot be released to the public.