- World of Warplanes Game Trailer World of Warplanes is a free-to-play flight combat massively multiplayer online (MMO) action game developed by Persha Studia in Ukraine and published by Wargaming in Belarus, set in the Golden Age of military aviation. The game was released on November 12, 2013 in CIS countries, and on November 13, 2013 in North America and in Europe.