Bioshock Dark is a well-made Windows theme that shows the mysterious underwater world of Rapture. The dark colors and spooky backgrounds fit the game's mood perfectly. The first background highlights a dramatic fight between a Big Daddy and a Splicer. The second image shows the emotional bond of the characters, with dark water and eerie lighting. The third image uses abstract art to give a strong visual message. Overall, Bioshock Dark is a great theme for fans who want a dark and beautiful desktop.