Action MAFIA: Family's Secret takes place in the 50s of the last century. The characters are members of the Guidis family. This is a mafia clan that has long gained authority in the criminal circles of the city. The user will have to take part in doing business, illegal operations and machinations. Each member of the community has abilities and skills to handle different types of weapons. This will come in handy, because shootouts happen here at every step. The plot is built around the dialogues that take place between the mafiosi. At peculiar meetings, tasks and opportunities for their implementation are determined. After that, responsibilities are distributed, and the player goes to complete the task.

In MAFIA: Family's Secret you have to protect the territory from the encroachments of rival groups. In addition, you have to seize other people's possessions. To achieve these goals, you should engage in combat clashes. They take place in various locations. You have to eliminate rivals in a night park, in the corridors of an office. Enemies will attack in waves. Speed, reaction and accuracy are used to shoot back at enemies. You can spare no ammunition, their supply does not run out. As a result, the area is cleared. At the same time, you need to be attentive and careful. The enemy may be waiting in ambush, make an unexpected attack. You should also understand that members of the group can weave intrigues and conspiracies. A traitor may be among the closest people.