Microsoft Studios revealed that its free-to-play Xbox Live Arcade multiplayer game Happy Wars has been downloaded more than six million times since its launch in October last year.

To mark the occasion, developer Toylogic has dropped the price of in-game item modification and forging by 50 percent. The studio will launch a variety of content updates during this month's Happy Wartober event, starting with the recent introduction of the turret-building Engineer class.

Happy Wars is available as a free download for Xbox Live Gold subscribers. Microsoft Studios additionally notes that Happy Wars: Season 2 is set to premiere in 2014, though no details regarding the update have been announced.