Empire of Sin is a strategy game set during Prohibition-era Chicago, letting players run a criminal empire built on bootlegging, racketeering, and turf wars between rival gangs. Turn-based tactical combat plays out alongside empire management.

Balancing gang loyalty, business operations, and violent confrontations with rivals gives the game a layered strategic structure, combining the social maneuvering of running a criminal organization with tactical combat set in a vividly recreated speakeasy-era city.