World of Tanks Game - a team-based massively multiplayer server. Play it online or download on pc. Mostly it is based on armored warfare. World of Tanks is a massively multiplayer online game developed by Belarusian company Wargaming, featuring mid-20th century era combat vehicles. It is built upon a freemium business model where the game is free-to-play, but participants also have the option of paying a fee for use of "premium" features.