Strategy game developer Wargaming.net has announced that its free-to-play online title World of Tanks has surpassed 5 million registered users worldwide.
As its title suggests, World of Tanks is an action title based on armored warfare, pitting teams of players against each other with a host of WWII-era vehicles from America, Germany, and the Soviet Union.
"We didn't expect World of Tanks would become this popular," said Wargaming.net CEO Victor Kislyi. "The game's success has given us confidence we needed to continue our expansion into the world of online wargames."
The game officially debuted in Russia in October 2010, and launched in North America and Europe last April after an extended closed and open beta.