Free-to-play MMO World of Tanks has surpassed more than 40 million registered users.
The hugely impressive milestone comes shortly after developer Wargaming.net revealed in April that the game had attracted more than 24 million users, which has almost been doubled within the six months since.
As well as garnering 40 million users, the developer claims that it has also set a new Russian record for concurrent users for an online game with over 500,000 players on a single server simultaneously.
World of Tanks was released in April last year, and in that time has experienced enormous growth in its userbase, and is now available in Europe, North America, Russia, China and Asia Pacific.
Last April Wargaming.net revealed that 13 billion armoured tanks had been destroyed, 75 billion shells had been fired and more than 350 million tank battles had taken place, a number which will have undoubtedly grown significantly since.