Dota 2 is a computer multiplayer team game in the multiplayer online battle arena genre developed by Valve Corporation. The game is a sequel to DotA, a custom modification map for Warcraft III: Reign of Chaos and the Warcraft III: The Frozen Throne add-on to it. The game depicts a battle on a special type of card; Each match involves two teams of five players each, controlling "heroes" - characters with different sets of abilities. To win the match, the command is to destroy a special “fortress” object belonging to the enemy side, to protect your own fortress from destruction. Dota 2 operates on a free-to-play model with micropayment elements.
Development of the game began in 2009, when Valve took part in the work of the DotA developer - IceFrog, in the summer of 2010 filed an application for registration of this trademark [4] [5]. On October 13, 2010, the game was announced on the Game Informer portal for release in 2011 [6]. On August 15, 2011, a trailer for the game was published on the official blog [7]. Dota 2 was released in July 2013 after being in beta for two years [8] [9].
