To provide a theater system, a theater facility and a theater seat capable of enjoying movies or the like without reserve on a circumference by a spectator with a child.

A theater system comprises theater units 3a, 3b,..., a control system 11 an entrance management system 13 a seat management system 15 and a kid room 17. The control system 11 controls the theater units 3a, 3b,.... The entrance management system 13 performs the management of the issuing of an admission ticket and the designation or the like of a seat. The seat management system 15 manages the seats one by one, and performs communication with the child entering the kid room 17. The kid room 17 is a room for the child, and a child program is prepared therein.