Captain Prosper is a SRPG (similar to Fire Emblem and other Tactics games) with mature content. You take the role of a smuggler with a hidden past and motive. You meet several women along the way that join your crew that range from soldier, pirate, knight, priestess, to noblewoman. As you get to know them intimately, their different motives align with yours, as you take on a common threat in the form of a powerful empire.