Quoted from schudel5:
A lot of games are great from that era...really too many good ones to crown 'the best'. But the one I have that I think is very difficult and that I don't think I'll ever complete is Cyclopes. Designed by Roger Sharpe, he did an interview about the game saying that he designed it to be very hard to reach the end.
This is a good game, looking for better example.
Hard to find.
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