Neither Tetris nor Chess, but Dwarf Fortress. http://www.pcgamer.com/into-the-deep-its-time-to-learn-how-to-play-dwarf-fortress/ http://www.pcgamer.com/into-th

Neither Tetris nor Chess, but Dwarf Fortress. http://www.pcgamer.com/into-the-deep-its-time-to-learn-how-to-play-dwarf-fortress/ http://www.pcgamer.com/into-the-deep-its-time-to-learn-how-t... http://www.nytimes.com/2011/07/24/magazine/the-brilliance-of-dwarf-fortress.html http://www.nytimes.com/2011/07/24/magazine/the-brilliance-of...