It's my favourite space strategy game of all time, and a vintage 4X offering by Microprose that simply hasn't aged a day. It also is a classic PC game you can bid on via this Master of Orion II: Battle at Antares eBay auction. The game comes in its original big box with the CD, the manual, and assorted leaflets. Everything seems to have been finely preserved.
Seller ships to many places worldwide.