Nanatsu no HikanSega Saturn Japanese (NTSC-J) Software
(poor case, poor spinecard) - $1.97
Translated, this is called Seven Mysterious Mansions, and it is rather similar too Myst. Never released in the US (quite unfortunately), this Koei game was actually sold for the Saturn alongside Myst.
NOTE: All photos depict good condition items only; actual product may vary.
Used Nanatsu no Hikan (good case, good instructions)
Used Nanatsu no Hikan (poor case, poor spinecard)