Unopened "Sid Meier's Civilization II" Windows CD-ROM computer game developed and published by MicroProse, released in 1996. The turn-based strategy game quickly became a bestseller, winning numerous awards and proving widely influential; it has earned placements on several lists of the 'best games of all time.' Encapsulated and graded by CAS with a master grade of "80" and a real grade of "83.5."