World of tanks is a massively multiplayer online game developed by belarusian company wargaming. net featuring mid-20th century era fighting vehicles. it is built upon a freemium business model where participants have the option of paying a small fee to advance at an accelerated rate. the focus is on player vs. player gameplay with each player controlling a tank or armored vehicle. world of tanks debuted as an esports game at the world cyber games 2012.