• “Modus Vivendi or "How to live". Premiere 14/11/2021, Idea / Text Composition / Direction: Antonis Diamantis. Performance sponsored by the Greek Ministry of Culture.
  "Gods’ love affairs". September 6 and 7 2021, in the courtyard of the Archeological Museum of Heraklion, Crete. Text Composition / Direction: Antonis Diamantis. Performance sponsored by the Ministry of Culture "All Greece, One Culture".
   "The Dance of Fire". Premiere October 13, at the Atalaya Centro Tnt (Seville, Spain). Performance in the framework of Creative Europe program "Dreams traces. Travelings, Container" which was also sponsored by the Greek Ministry of Culture.
• Text -Drama - Direction: Antonis Diamantis. This performance also presented in Odin Teatret (9 September 2021) 
• "Eureka" (Performance for children). Premiere 23 December 2021. "Eureka" is the result of a creative process within the European program entitled TIM - Theater in Mathematics (https://www.theatreinmath.eu /), co-organized by the Laboratory of Distributed Information Systems and Multimedia Applications of the School of Electrical and Engineering of the Technical University of Crete (Chania)
  Text: Alessandra Rossi Ghiglione with the help of Christian Castellano and Viola Zangirolami
  Text adaptation for Greece / Direction: Antonis Diamantis

• Establishment of the Center for Theatre Anthropology by Omma Studio Theater (February 2020). Headquarters: Heraklion, Crete. 1st International Conference on Theatrel Anthropology. Saturday, August 29, at the Student and Cultural Center "Xenia" of the University of Crete in Rethymnon in collaboration with the University of Crete (Laboratory of Theater, Cinema, Music, Department of Philology.)

• "Ascetica-Salvatores Dei", based on the novel of Nikos Kazantzakis. Performance / research on "The Relationship between Ritual and Theatre". Conception - Text Composition - Direction: Antonis Diamantis
• Festival: "Des Artes Escenicas De Sevilla". Monastery of Santa Clara, in Seville (Spain), on 28 and 29 November 2019.

"Orpheus and Eurydice", Street theater performance. Theatrically adapted and directed by Antonis Diamantis, presented, on August 3, at the Nisville International Jazz Festival in Nice, Serbia.
“Asimvivasti- Grenzgänger: The Borderline”. A co-production of Omma Studio Theater with the German group, Theater Studio 7 -Theaterwerkstatt für aktiv Kultur eV (Schwerte-Germany), May 5 and 6 in Shwerte, Germany and June 2 and 3 at the Conference and Cultural Center of Municipality of Heraklion, Crete, Greece. Sponsored by the Ministry of Culture and the German Embassy in Greece. Text/ Composition / Dramaturgy / Direction: Antonis Diamantis - Christoph Falke.

"The Woman Murderer" by Alexandros Papadiamantis. Performance / research on the topic "The Relationship between Ritual and Theatre". Conception - Text Composition - Direction - Space Visual Arts: Antonis Diamantis

"The Instruments and the Drums" performance for children based on traditional fairy tales from the Greek island of Chios.
"Ode to Myth", a street theater performance based on the Greek mythology.
"Ascetica - Salvatores Dei" by Nikos Kazantzakis. Performance / research on: "The Relationship between Ritual and Theater"
Conception - Text Composition - Direction - : Antonis Diamantis