Īs of September 3, 2014, an Xbox Live Gold account was required to play the game online due to recent updates, the game now accepts regular Xbox Live members as well. The multiplayer mode consists of two teams of up to 15 players attempting to destroy the other team's castle while also defending their own.

Happy Wars is a multiplayer online game, defined as a role-playing strategy game, although it also has a short story-driven single player campaign mode. The Xbox One version was released on April 24, 2015, and is now the only platform the game can be played on. It was originally released for the Xbox 360 on Octoon the Xbox Live Arcade as its very first free-to-play title, and additionally for Microsoft Windows on May 28, 2014, but availability on the online marketplaces of these platforms and service to these platforms has since been discontinued as of December 17, 2018. Happy Wars is a free-to-play, online multiplayer, action tactical role-playing video game developed by Toylogic, available for Xbox One.

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