THE iDOLM@STER SideM

THE iDOLM@STER: SideM (アイドルマスター サイドエム Aidorumasutaa Saido Emu?) is the all-male spinoff of the THE iDOLM@STER franchise. It focuses on 46 voiced idols in 15 units and is a multimedia project spanning two mobile games, several live performances, manga, a 13-episode TV anime, and more.

It was initially released as a mobile game on Mobage on February 7, 2014, but was quickly shut down due to server issues. The game reopened on July 17, 2014. Voices for idols were implemented into the game on March 15, 2015.

Mobage
SideM's first game is run on Mobage, a mobile gaming platform. It has similar gameplay to Cinderella Girls and Million Live! in that the basics of the game revolves around regenerating stamina and social elements. Idols in SideM are represented by trading cards of three different rarities— Normal, Rare, and Super Rare, each with a Unchanged and Changed (+) version.

The Mobage can be played in both the mobile browser, on a mobile app, or on a computer through AndApp.

LIVE ON ST@GE!
LIVE ON ST@GE!, often shorted to LOS, MSute, or MStage, was announced at the 2nd Live concert as another mobile game. It was later released on August 30th, 2017. Like the SideM Mobage game, it revolves around collecting cards. However, there are less social elements in that players cannot contact other players or trade cards. It has an additional rhythm game and MV section where the player can watch the idols perform in the songs.

LOS can be played on most mobile devices.