The purpose of the article is to reveal the peculiarities of theatrical interactivity as a model of communication in modern culture and to consider interactive theatre as a means of social transformation. Research methodology. The terminological method, the typological method, the method of functional analysis, the method of synthesis, as well as the method of systematisation and generalisation are applied (for consideration and scientific substantiation of the concept of theatrical interactivity, identification of the characteristic features of interactive theatre as a phenomenon of modern cultural space). Scientific novelty. Theatrical interactivity as a model of communication in modern culture has been studied; analysed models of interactivity by M. L. Ryan, McIver Lopez, S. Dixon and others in the context of the interaction between the participant and the production; the theatre methodology of A. Boal "Theatre of the Oppressed" is considered (the audience is an active participant in the performance). Based on the analysis of modern European productions of interactive theatre, the main criteria of the approach to their creation are identified. Conclusions. Interactive theatre is a form of theatrical action that involves the active participation of the viewer, who ceases to be just a spectator, turning into a full participant in the joint creative process. Theatrical interactivity involves taking the viewer out of the comfort zone, from the position of an "observer" and bringing them into the sphere of live communication and perception. At the same time, this is not always synonymous with empowerment or satisfaction, and the desire to give the viewer some freedom is in some cases restrained by manipulative performances. As an alternative communication space, a place where people listen to each other, express their own thoughts – interactive theatre is a means of social transformation. They establish direct contact with their audience, who not only perceives and evaluates the productions, but thanks to the live dialogue becomes a partner in the stage action. Theatrical interactivity involves the observance of the following criteria: thinking outside the place of the performance, substantiating the relationship between the audience and the actors, moving away from the demonstration of the audience, maximum simplification and consistency. Individual practices of interactive theatre allow participants to distance themselves from social roles and bring their own values to this experience.
 Keywords: theatrical interactivity, interactive theatre, actor, audience, communication model, modern culture, interaction.
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