This is a mint, shrink-wrapped copy of Infernal Machine by GMT Games.  The copyright is 2025 and the stock number is 2520.  Ed Ostermeyer and Jeremy White designed the game that is a solitaire game of early submarine warfare during the American Civil War.  Game parts are three sheets of full color game counters, 117 small sized cards, 49 regular sized cards, one wooden block, 41 wooden cubes, two mission boards, one tactical board, one gauges board, two historical submarines displays, three player aids, five booklets, and three dice. The game is mint in the original shrink-wrap.  MSRP on this title is $93.00.