World of Tanks is a team-based massively multiplayer online action game dedicated to armoured warfare. Throw yourself into the epic tank battles of World War II with other steel cowboys all over the world. Your arsenal includes more than 150 armored vehicles from America, Germany, and the Soviet Union, carefully detailed with historical accuracy.
World of Tanks is currently in open beta, scheduled to be released in Q1-Q2 2011. I started playing on the 4th October 2010 and have written numerous blogs and guides for it to date.