The game was released on the GREE platform on September 18, 2012 and on Mobage and NTT DoCoMo on November 28, 2013.

The game could be accessed on Japanese smartphones and feature phones by going to a website hosted by GREE.

[6] Players run their own kingdom as the emperor, craft a unique history, and save the world from an unprecedented crisis.

[11] GREE, the Japanese social platform, merged with OpenFeint in 2012, and Emperors SaGa was listed as a title that would be featured on the service.

[1] Square Enix ran a promotion pre-release that if players registered for the game before it came out, they received a rare in-game card, Andromache.