or arena stage
Theatre in which the stage is located in the centre of the auditorium with the audience seated on all sides.
The form evolved from Greek theatre and was used in medieval times. From the 17th century the proscenium stage limited audience seating to the area directly in front of the stage. In the 1930s, plays at Moscow's Realistic Theatre were produced in the round and the arena stage began to gain favour in Europe and the U.S. Its advantages are its informality and the rapport it creates between audience and actors, but it requires actors to turn constantly to address new sections of the audience.