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Video Game Data
Platform: Mobage, iOS, Android, AndApp, ChromeApps
Publisher: Bandai Namco Entertainment Inc.
Alt Plus Inc.
Selling Agency: DeNA
Release Date: July 17, 2014 (Mobage),
April 23, 2015 (Android App),
May 1, 2015 (iOS App)
CERO Rating:

THE iDOLM@STER SideM (Japanese: アイドルマスター サイドエム Aidorumasutaa Saido Emu) is a game that features the recruitment of soon to be idols at 315 Production and the three idols within the unit Jupiter, who have now defected to 315 Production. Like THE iDOLM@STER Cinderella Girls, it is a social media game hosted by Mobage.

The game's main theme is job change. All of the idols have had jobs, and for various reasons they decide to switch and become an idol. The player is the producer, who helps them achieve their dreams. There are 46 voiced idols, divided into 15 units to chose from.

The game was going to be launched on February 7, 2014, but was quickly shut down due to server issues, and as a result, it was placed on indefinite maintenance. On July 17, 2014, the game officially went back online. Voices for idols were implemented into the game on March 15, 2015.

Once again, players can vote on their favorite idol every year to see who's the most popular idol of that year. However, this practice stopped after Year 2. However a yearly vote for a given event's sequel has happened instead.

In celebration for the game's 1st anniversary, a new mini game called "SideMini" was announced, then released on August 31st, 2015.

At the 2nd Live concert, another mobile game was announced, THE iDOLM@STER SideM LIVE ON ST@GE!, as well as an anime adaptation of the series. The former was released in 2017, while the latter was released in the Fall 2017 anime season.

On October 6, 2021, THE iDOLM@STER SideM GROWING STARS, a spinoff rhythm game, was released for Android and iOS.

System and Gameplay

The game has similar gameplay to Cinderella Girls and the now-defunct 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 (N), Rare (R), and Super Rare (SR), each with an Unchanged and Changed (+) version. Like the other iDOLM@STER series, each idol has their own stats, and there are three main attribute types: Physical (red), Intelligence (blue), and Mental (yellow).

The first time the game is started, players will be guided by their assistant, Ken Yamamura, through a tutorial where they are able to choose one of the three DRAMATIC STARS members as their starting R+ idol: Teru Tendo (physical), Kaoru Sakuraba (intelligence), or Tsubasa Kashiwagi (mental). All three of these cards do not affect the player's future in the gameplay, as it will be fairly easy to attain the cards of the other idols through points scouting.


The core of SideM lies in business (Japanese: 営業 eigyou). There are eight locations with four stages, each with five levels within them, and more locations can be unlocked through progressing through the game. To conduct business, players have to tap the screen until the level is complete or until they run out of stamina. Various events can occur during business, including Lives, Audition Battles, and card scouting. At the end of each stage, there is also a 'boss battle'.


Lives randomly occur through conducting business. Each player uses a unit to make an appeal of a certain amount (voltage) in order to do lives. They also have control on how much appeal is used by selecting the star with the corresponding amount of appeal points (in sets of 20, up to 100), which is important to avoid using an unnecessary amount of appeal points. Appeal points can be restored through AP bars.

Audition Battles

Audition Battles are the other random event that occurs in business. Unlike Lives, they do not use AP. Each of the two players' cards will be pitted against each others' cards in a battle of strength in either vocal, dance, or visual categories, where the player must have at least 3 of their cards win to emerge victorious in the battle.


Lessons (レッスン) is the way to improve a card's stats and skill level. This is necessary for Lives, where higher card stats give more appeal points. For players to perform lessons and improve stats, they have to select auto lesson (おまかせレッスン) or manually choose cards to 'feed' to the card of their choice. Once the lesson is over, the cards that were 'fed' will no longer exist. Using Ken Yamamura N/R cards for lessons are the most efficient, as they cost less G to use and give more EXP.


The player can Change! (チェンジ!) a card to convert it from an unchanged version to a + version, improving its stats and changing the card artwork. Duplicates are required to Change! cards; the player needs to select a base card to change, then a second copy. After changing a card, the card's level resets to 1. It is recommended that the level of a card is maxed out before changing it, as it will give stat bonuses. Some cards, such as promo cards and Ken Yamamura cards, are unable to be changed.

Scout Gacha

Scout Gacha (スカウトガシャ) is one of the main ways to obtain cards in SideM. There are four types of gacha— Limited, Contest, Ticket, and Point.

Limited/Contest Gacha

Limited and Contest Gacha are paid gachas that is only available for a short period of time, generally the same as the current event. Limited Gacha will often follow the same theme and story of the event.

Ticket Gacha

Ticket Gacha has three subtypes: Platinum Scout, Live Scout, and event gacha. Platinum Scout guarantees cards of at least R rarity, with a small chance of the permanent DRAMATIC STARS and FRAME SRs. Live Scout tickets are obtainable through business, and hold cards of all rarities. Event gacha, not to be confused with Limited Gacha, is obtainable in certain events. Event gacha generally gives the same cards as Live Scout would— however, event gacha also offers a small chance at getting the event's ranking R or SR card. There are also % Event SR tickets, which can be obtained through reaching a certain rank in events. These tickets give a 0.3% to 20% chance of getting the event SR the ticket was obtained from.

Point Gacha

In the Point Gacha, cards of all rarities are offered, but there are many cards that are rarer to find.


Events (イベント) are the other way to obtain new cards. Each week or so, a new event begins, usually focused on two of the units (though it may also be focused on various members of different units, or singular units in cases of High×Joker or Café Parade. Event cards are split between cards obtainable in the event, and cards that must be scouted for in Limited Gacha. There are two SRs for each event: one available through scouting, and the other obtainable through reaching a certain rank in the event. Each event has a different theme (such as ghost story or butler), and there are four event types. Each event type also has a set of panel missions, which give cards and 315 Seals (that can be traded for items). There are also event stories, which show special dialogue between the characters, and event manga, which correspond with the event cards. Previews for the next in-game event usually show up in the game's notices 3-4 days before the current event ends.



Marathon events progress similarly to normal business. However, instead of Lives and Audition Battles, Appeal Chance will occur instead, where players have to choose to make a megaphone appeal (red), 50 appeal (green), or appeal (blue), which give one of three types of appeals: Normal, Good, and Perfect. Generally, blue appeal, which requires no AP, will give Normal, but can sometimes give Good or Perfect appeals. Green appeal, which uses 50 AP, will always give Good or higher. Red appeal requires megaphones, which can be bought, traded for 315 Seals, or obtained throughout the event. They will always result in Perfect appeals, and can be stacked up to three times for a 3.6% bonus. Sometimes, there will be more than one character on screen during the Appeal Chance. This can either double or triple the number of points obtained, depending on whether or not the character is in their + form. It is recommended to use red appeals only while a triple bonus is in effect, and when the player is able to use three megaphones at a time. In Marathon events, there are 6 different areas, each with 3 steps, which each contain 5 stages. At the end of each step, players will be challenged to an Appeal Battle by a one of the units in the game, which play the same as Audition Battles. It is possible to switch between the areas at any time once they have been completed.

Marathon events have a unique feature called Event Reports, which are obtained through playing the event, and trade them for a chance at a special gacha, which has a possibility of getting the ranking SR, as well as the ranking R, points R, and many other items.



Other Gameplay Mechanics


Joining a team (チーム) is optional, but provides many benefits, such as extra items and events. As well, Live events are easier to participate in with the help of a team, and Team events require a team to join.


SideMini is a small minigame which takes place in the production's office. It is possible to call on miniature versions of the idols through souvenirs, which are obtainable through Lives and events. There are three main sizes of souvenirs, and each will bring one to three idols at once. As well, there are also special unit souvenirs, which will bring only that specific unit. For example, the rice cracker souvenirs will bring the unit Shinsoku Ikkon to the office. The idols will bring items such as AP bars or Jelly, and the quantity of the item depends on how many idols appear.

Magazine Publications

The magazine publications are manga that the idols appear in. These serve to introduce the idols, and can be unlocked with Memory Notes. There are also manga for each card in events.


Physical Idols
Asselin SideM Icon.png Daigo SideM Icon.png Hayato SideM Icon.png Michiru SideM Icon.png Minori SideM Icon.png
Asselin BB II Daigo Kabuto Hayato Akiyama Michiru Enjoji Minori Watanabe
Ren SideM Icon.png Ryu SideM Icon.png Saki SideM Icon.png Shiki SideM Icon.png Shiro SideM Icon.png
Ren Kizaki Ryu Kimura Saki Mizushima Shiki Iseya Shiro Tachibana
Suzaku SideM Icon.png Takeru SideM Icon.png Teru SideM Icon.png Touma SideM Icon.png
Suzaku Akai Takeru Taiga Teru Tendo Touma Amagase

Intelligence Idols
Amehiko icon.png Chris Icon.png Genbu SideM Icon.png Hideo SideM Icon.png Hokuto SideM Icon.png
Amehiko Kuzunoha Chris Koron Genbu Kurono Hideo Akuno Hokuto Ijuuin
Jiro SideM Icon.png Jun SideM Icon.png Kaoru SideM Icon.png Kazuki SideM Icon.png Kirio SideM Icon.png
Jiro Yamashita Jun Fuyumi Kaoru Sakuraba Kazuki Tsukumo Kirio Nekoyanagi
Kyoji SideM Icon.png Kyosuke SideM Icon.png Michio SideM Icon.png Nao SideM Icon.png Natsuki SideM Icon.png
Kyoji Takajo Kyosuke Aoi Michio Hazama Nao Okamura Natsuki Sakaki
Rei SideM Icon.png Soichiro SideM Icon.png
Rei Kagura Soichiro Shinonome

Mental Idols
Haruna SideM Icon.png Kanon SideM Icon.png Kei SideM Icon.png Kuro SideM Icon.png Makio SideM Icon.png
Haruna Wakazato Kanon Himeno Kei Tsuzuki Kuro Kiyosumi Makio Uzuki
Pierre SideM Icon.png Rui SideM Icon.png Ryo SideM Icon.png Seiji SideM Icon.png Shoma SideM Icon.png
Pierre Rui Maita Ryo Akizuki Seiji Shingen Shoma Hanamura
Shouta SideM Icon.png Sora icon.png Tsubasa SideM Icon.png Yukihiro SideM Icon.png Yusuke SideM Icon.png
Shouta Mitarai Sora Kitamura Tsubasa Kashiwagi Yukihiro Kamiya Yusuke Aoi

Idol Units

ShoutaMitaraiN+1.jpg TomaAmagaseR+1.jpg HokutoIjuinR+1.jpg
TsubasaKashiwagaR+1.jpg TeruTendoR+1.jpg KaoruSakurabaR+1.jpg
KazukiTsukumoR+1.jpg RyoAkizukiR+5.jpg DaigoKabutoR1.jpg

KeiTsuzukiN+1.jpg ReiKaguraN+1.jpg

KyosukeAoiN+1.jpg YusukeAoiR+3.jpg

Shinsoku Ikkon (神速一魂)
GenbuKuronoN+1.jpg SuzakiAkaiN+1.jpg

RyuKimuraR+1.png HideoAkunoR+1.png SeijiShingenR+1.png

Sai (彩)
ShomaHanamuraR+1.png KirioNekoyanagiR+1.png KuroKiyosumiR+1.png

MinoriWatanabeN+1.jpg PierreN+1a.jpg KyojiTakajoN+1.jpg

Mofumofuen (もふもふえん)
KanonHimenoN1+.jpg NaoOkamuraN1+.jpg ShiroTachibanaN1+.jpg

THE Kogadou (THE 虎牙道)
MichiruEnjojiN+1.jpg TakeruTaigaN+1.jpg RenKizakiN+1.jpg

JiroYamashitaN+1.jpg MichioHazamaN+1.jpg RuiMaitaN+1.jpg

Café Parade
SakiMizushimaN+1.jpg MakioUzukiN+1.jpg YukihiroKamiyaR+1.jpg SoichiroShinonomeN+1.jpg AsselinBBIIN+1.jpg

HarunaWakazatoR+1.jpg ShikiIseyaR+1.jpg HayatoAkiyamaR+1.jpg JunFuyumiR+1.jpg NatsukiSakakiR+1.jpg

Amehiko KuzunohaR+1.jpg Sora KitamuraR+1.jpg Chris KoronR+1.jpg

New Idol Discovery Audition

New Idol Discovery Audition Candidates
Takeshi NIDA.jpg
Goro NIDA.jpg
Shinobu NIDA.jpg
Takeshi Mimasaka Goro Sanjo Shinobu Kazama
Eru NIDA.jpg
Sora NIDA.jpg
Amehiko NIDA.jpg
Eru Shiraishi Sora Kitamura Amehiko Kuzunoha
Reo NIDA.jpg
Mario NIDA.jpg
Chris NIDA.jpg
Reo Igari Mario Ando Chris Koron

Official Links

Unofficial Links