Teenage Mutant Ninja Turtles: Shadows of the Past is a miniatures combat, scenario-driven campaign game that features story content from the IDW TMNT comic. Taking the role of their favorite Turtle or the ultimate villain Shredder, players battle their way through a series of 60-90 minute missions in which they develop their characters' strengths, fighting styles, and equipment along the way to create a lasting story arc.

Fan-favorite characters like Casey Jones and Alopex appear throughout the missions as the Turtles call on their closest allies for help in battling their deadliest foes.