The year is 3111, and life on Earth is becoming increasingly unbearable. Entire continents have become uninhabitable.
A small group has escaped to a deserted island in the Sargasso Sea. Here, life seems possible. Ancient inscriptions tell the story of the Blue Diamond which prophesies the end of humanity in the 31st century. Only the mysterious powers of a large blue diamond can save mankind.
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A really good game for 1985. You spend 75% of your time travelling from some cave to another.
Really interesting.