Article · Wikipedia archive · Last revised Jul 20, 2026

Emperors SaGa

Emperors SaGa was a 2012 role-playing video game co-developed by Square Enix and AltPlus, and published by Square Enix across multiple mobile networks for both Android and iOS smartphones, and feature phones. A spin-off within the SaGa series, the game is the first non-console entry in the series. The story followed different characters defending their world from hostile divine forces, drawing inspiration from the Romancing SaGa subseries. Its turn-based combat system was based around character cards which could be gained through a gacha system, with skill acquisition and party formation carried over from the SaGa series.

Last revised
Jul 20, 2026
Read time
≈ 12 min
Length
2,767 w
Citations
80
Source
Emperors SaGa
DevelopersSquare Enix
AltPlus
PublisherSquare Enix
ProducersTakehiro Ando
Masato Ichikawa
Tomoya Saishu
ArtistTomomi Kobayashi
WritersMoku Tochibori
Akitoshi Kawazu
SeriesSaGa
PlatformsAndroid
Feature phone
iOS
ReleaseGREE
  • JP: September 18, 2012
Docomo
  • JP: November 25, 2013
Mobage
  • JP: November 28, 2013
GenreRole-playing
ModesSingle-player, multiplayer

Emperors SaGaa was a 2012 role-playing video game co-developed by Square Enix and AltPlus, and published by Square Enix across multiple mobile networks for both Android and iOS smartphones, and feature phones. A spin-off within the SaGa series, the game is the first non-console entry in the series. The story followed different characters defending their world from hostile divine forces, drawing inspiration from the Romancing SaGa subseries. Its turn-based combat system was based around character cards which could be gained through a gacha system, with skill acquisition and party formation carried over from the SaGa series.

Production began in 2009 as an internal Square Enix project, but quality concerns and the wish to have it playable on smartphone devices prompted the game to be restarted in 2011 with AltPlus as co-developer. The two companies' different design approaches led to some friction during production. Series creator Akitoshi Kawazu supervised the project and contributed scenarios, and recurring illustrator Tomomi Kobayashi provided character designs alongside a number of other artists.

Emperors SaGa was a commercial success for the developers, with one million registered players by 2013. Japanese journalists praised the gameplay and character art, while Western reactions were more varied. Remaining exclusive to Japan, the game was shut down in 2017. The game's success inspired the production of Imperial SaGa (2015), a web browser game with a similar premise, and was credited by Kawazu with reviving interest in the series.

Premise and gameplay

Screenshot of combat in Emperors SaGa source ↗

Emperors SaGa was a role-playing social game set in a fantasy world inspired by the Romancing SaGa games, part of the wider SaGa series and featuring characters from different entries.1 The setting was Chaospolis, a land where multiple worlds overlap, and followed different characters confronting divine threats. The initial player character, the Silver Emperor, fought a being dubbed the Destroyer that was unleashed on his kingdom. Later chapters followed different leads and storylines, including fighting the Silver Emperor of another dimension who was corrupted by dark powers, and the time goddess Ang Lugh who was resurrected and froze all of time.23 The game was progressed through story-based missions, requiring players to fight enemies. During quests rare Abyss Gates could also appear, featuring a boss that awarded rare in-game items if defeated under a time limit.4

The game used a turn-based combat system where characters, represented with cards, auto-battled enemies until one side was defeated. The combat featured multiple recurring mechanics from the SaGa series.5 During combat, the player characters could randomly learn new moves dubbed "Secret Techniques", while new skills were unlocked for characters by combining duplicate character cards. Some attacks had additional properties, such as guaranteed hits or stunning the enemy.1 Combining cards could also raise a character card's statistics, a version of the "Inspiration" mechanics from the SaGa series, randomly unlocking new moves during combat.45 Cards could be arranged in a "formation", another recurring mechanic, which granted boons to the party.5

Emperors SaGa used a gacha system, with event completion awarding gacha tickets that could be used to pull new character cards based on the current event. While the core game was free to play, character-specific gacha could be paid for through microtransactions. Completing events raised the player's experience level, awarding three points to distribute between different types of stamina. Healing items were limited in number, gained through the gacha system. Players could also compare event completion scores on a ranking board, and could summon help from players during more difficult event quests.1 The game's three versions across its providers had small differences ranging from story progression to gameplay mechanics and gacha rarity, and additional elements such as equipping weapons and accessories to characters were added in post-launch updates.13

Development

Following the release of Unlimited Saga in 2002, the SaGa series had been mostly dormant beyond remakes of earlier titles. Series creator Akitoshi Kawazu attributed this to both being busy with other gaming projects, and a shift in series owner Square Enix towards an international approach which did not fit with the niche appeal of SaGa.6 Production on Emperor SaGa began in 2009, with a design and premise based solely on the world of Romancing SaGa 2.7 It was the first non-console SaGa game to be developed.6 The initial version ran into production difficulties due to both quality concerns and uncertainty at Square Enix over how to develop mobile games for the emerging smartphone market.78 The original version of Emperors SaGa, initially an in-house project, was scrapped in 2011. Developer AltPlus had approached Square Enix to develop an original title, but were brought on to help restart production on Emperors SaGa due to their commercial successes in the mobile market.8

The game was co-produced by Takehiro Ando and Masato Ichikawa.97 Ando had previously worked on the Chaos Rings series before being put in charge of mobile titles for both Final Fantasy and SaGa. He described the adaptation process between platforms as difficult since he grew up with the original games and did not want to upset longtime fans with too many changes.9 Ichikawa also had great respect for the series, and insisted on weekly meetings with Kawazu to make sure the game was faithful to as many SaGa elements as possible.6 Kawazu had previous experiences working on both mobile games and MMORPG projects, with the team citing his experience as vital for the project. Kawazu also had Ichikawa brought on board to help guide the project under its new direction.7

During production of the final version, the Square Enix staff handled the story and art assets, while AltPlus created the game design and architecture.8 Under Ichikawa's direction, the game changed into being a grander crossover title, taking inspiration from his work on Dragon Quest & Final Fantasy in Itadaki Street Special.7 Due to differing design philosophies, there was often friction between the two companies. While Ichikawa wanted to make something new for the mobile market, AltPlus wanted to stick to established trends; conflicts ranged from Square Enix's insistence that old art not be recycled, to AltPlus criticising the initial tutorial length. Implementing SaGa mechanics into the card-based combat also proved challenging, with the Formation system added in just weeks before the game's release.8 Due to a combination of its game design and platforms, Emperors SaGa featured no sound.10

Following the project restart, Ichikawa brought on writer Moku Tochibori, who had just completed work on Final Fantasy Type-0 (2011). While the basic worldview and original characters were carried over from the earlier version, the story was completely rewritten.7 It was Tochibori who suggested a setting which blended all of the Romancing SaGa titles, and the team created a story bible to maintain consistency going forward.8 AltPlus initially advised against a scenario as it might put off casual players, but Ichikawa insisted on it due to the series' story-driven legacy.7 Kawazu provided oversight for the scenario, and occasionally contributed narrative events during the game's life.811 While Ichikawa was unable to implement the "Free Scenario System" seen in mainline SaGa titles, he and the team did adjust the story going forward based on player feedback, keeping the story fluid.11

Ichikawa remembered one point of disagreement between Square Enix and AltPlus was AltPlus's insistence on including moe character designs, which Square Enix rejected.11 Kawazu insisted they bring in Tomomi Kobayashi, who had worked on multiple entries.7 Kobayashi initially designed the leading Emperor and an alternate Empress, along with eight character jobs. Her design for the Emperor and Empress was inspired by their "commoner" background and ability to charm anyone they meet.12 Kobayashi also created designs for characters mentioned but not seen in the SaGa series, basing them on story summaries provided by Kawazu.13 Additional character artists also worked on the game, including members of Taiwanese artist group Friendly Land.14 For the game's fourth chapter, the lead characters were designed by Gen Kobayashi.15 The background art was designed by external company Meteorise.16

Release

Square Enix registered the "Emperors SaGa" trademark in September 2010,17 and was officially announced on September 16, 2011 during the Tokyo Game Show as part of Square Enix's expansion of its properties across then-current and upcoming platforms; pre-registration for this version opened the same day.18 While initially announced for an autumn closed beta in 2011, the pivot towards smartphones prompted Square Enix to cancel its pre-registration and move its prospective release into the summer of 2012.19 Pre-registration for its release version opened in August 2012, offering a powerful card with original artwork by Kobayashi as a reward.20

Emperors SaGa first released on the GREE platform on September 18, 2012.21 It later released on the NTT DoCoMo platform on November 25, 2013,22 and for Mobage on November 28 that year.23 It was following the additional platform releases that Tomoya Saishu joined as a producer.7 The game could be played on Android and iOS smartphones, and older feature phones.24 While advertised by GREE as one of the titles intended for their new global network,25 no version of the game released outside Japan.26

The story was released in five chapters between 2012 and 2016.3827 The game had multiple crossover collaborations with other games including Fantasy Earth Zero and Final Fantasy Tactics S in 2013;2829 Brave Frontier, Million Arthur and Rise of Mana in 2014;303132 and Guardian Cross in 2015.33 Emperors SaGa ultimately ended its service on April 28, 2017, with the decision prompted by increasing difficulty providing a satisfactory service for all players.34

Reception

At release Emperors SaGa became AltPlus's highest selling title for two consecutive months,35 and by October 2013 had over one million registered players.36 At the GREE Platform Awards 2012, Emperors SaGa was given the "Best RPG Award".37

In a preview of the game at the 2012 Tokyo Game Show, 4Gamer.net noted that casual players unfamiliar with the SaGa series would find enjoyment in collecting cards and viewing their artwork.5 Dengeki Online noted that the gameplay had unexpected depth in how SaGa mechanics were incorporated into the card-based combat, additionally praising the storyline and character artwork.1

Michael Baker of RPGamer heavily disliked the game when he played a demo of it, calling it overly derivative of the Romancing SaGa games and finding its controls unresponsive.38 1UP.com's Chris Pereira included it on a list of five notable Japanese mobile games unlikely to come to North America, highlighting the workload in localizing a role-playing game while pleased that the SaGa series was getting a new entry after its prolonged hiatus.39 Anthony John Agnello, writing for Digital Trends, highlighted Emperors SaGa as part of the Japanese gaming industry's wider move towards casual social and mobile games as major sources of revenue.40

Legacy

Prior to the release of Emperors SaGa, the SaGa series had been exclusive to home consoles, but afterwards the series would expand onto mobile and browser platforms.41 Kawazu also attributed Emperors SaGa with revitalising interest in the SaGa series following its prolonged inactivity.6 Ichikawa would go onto to become a recurring producer for the SaGa series alongside Kawazu.4243

Inspired by the popularity of Emperors SaGa, Square Enix producer Kei Hirono wanted to create an equivalent title for PC browsers and expand the SaGa series further.44 The game, Imperial SaGa, was released developed by Think & Feel and released in 2015 as part of the series' 25 Anniversary celebrations;4546 it ran until 2019, when it shut down due to the discontinuation of Adobe Flash.47 A sequel, Imperial SaGa Eclipse was developed as a replacement and operated between 2019 and 2024.4849

Notes

Notes

  1. Enperāzu Saga (Japanese: エンペラーズ サガ)
References

References

  1. 今から始める『エンペラーズ サガ』。シリーズファンに遊んでほしいオールスター作品. Dengeki Online (in Japanese). 2014-12-28. Archived from the original on 2019-02-04. Retrieved 2026-07-07.
  2. 歴代キャラが集結する『エンペラーズ サガ』のカオスなストーリーをまとめて紹介!. Dengeki Online (in Japanese). 2014-12-30. Archived from the original on 2015-07-07. Retrieved 2026-07-07.
  3. スクエニ、 GREE版『エンペラーズ サガ』 で新章「エンペラーズサガ Glacies」の配信を開始 武器・防具・アクセサリーの装備システムを実装. GameBiz.jp (in Japanese). 2016-03-01. Archived from the original on 2025-11-17. Retrieved 2026-07-07.
  4. スクウェア・エニックス、サガシリーズ最新作『エンペラーズ サガ』をGREEで提供開始. GameBiz.jp (in Japanese). 2012-09-18. Archived from the original on 2026-07-06. Retrieved 2026-07-07.
  5. [TGS 2012]「サガ」シリーズ最新作は,伝統を継承したモバイルカードRPG。スクウェア・エニックス「エンペラーズ サガ」レポート (in Japanese). 2012-09-23. Archived from the original on 2013-01-16. Retrieved 2026-07-07.
  6. 新作『SAGA2015(仮称)』発表記念。河津秋敏氏が振り返る『サガ』シリーズ25年の思い出. Dengeki Online (in Japanese). 2015-01-22. Archived from the original on 2018-07-21. Retrieved 2018-09-12.
  7. 『エンサガ』河津秋敏さんが七英雄やシナリオを語る。『SAGA2015(仮)』の開発状況も. Dengeki Online (in Japanese). 2015-08-31. Archived from the original on 2016-07-31. Retrieved 2026-07-07.
  8. 【インタビュー】「まあ揉めますよね」…国内RPG制作会社の雄・スクエニと大手SAP・オルトプラスの両社が腹を割って語る『エンペラーズ サガ』開発秘話. Gamebiz.jp (in Japanese). 2014-01-01. Archived from the original on 2024-06-13. Retrieved 2026-07-07.
  9. Gifford, Kevin (2013-01-23). "Square Enix social-game devs talk about clones, growing pains and hope for the future". Polygon. Archived from the original on 2013-03-31. Retrieved 2013-04-14.
  10. もう一度、皇位継承したい『サガ』ファン注目! 『インぺリアル サガ』開発スタッフインタビュー. Famitsu (in Japanese). 2015-05-29. Archived from the original on 2016-03-14. Retrieved 2017-12-27.
  11. 『サガ』シリーズに新展開!? 河津&市川両氏に特濃インタビュー!!. Famitsu (in Japanese). 2013-08-15. Archived from the original on 2020-10-28. Retrieved 2021-03-20.
  12. エンペラーズサガ (in Japanese). Tomomi Kobayashi official blog. 2012-10-11. Archived from the original on 2026-07-06. Retrieved 2026-07-07.
  13. 聖王十二将 (in Japanese). Tomomi Kobayashi official blog. 2012-10-11. Archived from the original on 2017-09-13. Retrieved 2026-07-07.
  14. 台湾の独立系作家集団Friendly Land本社訪問レポート. Game Watch Impress (in Japanese). 2013-02-04. Archived from the original on 2019-08-22. Retrieved 2026-07-07.
  15. 小林元@コバゲン - 4:09 PM - 26 Dec 2014. Twitter (in Japanese). 2014-12-26. Archived from the original on 2022-03-28. Retrieved 2026-07-07.
  16. Works - エンペラーズ サガ (in Japanese). Meteorise official website. Archived from the original on 2025-09-15. Retrieved 2026-07-07.
  17. Yip, Spencer (2010-09-21). "Square Enix Ready To Give Gamers An "Ultimate Kiss" With A Theatrical Game?". Siliconera. Archived from the original on 2012-12-20. Retrieved 2012-07-15.
  18. 東京ゲームショウ 2011レポート スクウェア・エニックスがスマートフォン&ソーシャルコンテンツ発表会を開催 「サガ」のソーシャルゲームやスマートフォン初の「ドラクエ」などを発表. Game Watch Impress (in Japanese). 2011-09-16. Archived from the original on 2017-08-08. Retrieved 2026-07-07.
  19. Gantayat, Anoop (2011-12-07). "Square Enix's Galaxy Dungeon is From Chaos Rings' and Moon Diver's Takehiro Ando". Andriasang.com. Archived from the original on 2012-09-30. Retrieved 2026-07-07.
  20. オンラインカードバトルRPG「エンペラーズ サガ」の事前登録受付がスタート。登録者には小林智美さんの描くスーパーレアカードがプレゼントされる. 4Gamer.net (in Japanese). 2012-08-28. Archived from the original on 2026-02-10. Retrieved 2026-07-07.
  21. Yip, Spencer (2012-08-28). "Emperors SaGa Finally Comes Out In September, Makes Players An Emperor". Siliconera. Archived from the original on 2012-08-30. Retrieved 2012-09-12.
  22. 『エンペラーズ サガ』dゲーム版配信開始!! (in Japanese). AltPlus. 2013-11-25. Archived from the original on 2016-03-04. Retrieved 2026-07-07.
  23. Mobage版 dgame版 『エンペラーズ サガ』2周年! 新レアリティ追加、記念キャンペーン開始! (in Japanese). AltPlus. 2015-11-25. Archived from the original on 2023-12-06. Retrieved 2026-07-07.
  24. 「エンペラーズ サガ」特別参加!!第8回コラボ企画 (in Japanese). AltPlus. 2014-01-20. Archived from the original on 2023-12-06. Retrieved 2026-07-07.
  25. Gantayat, Anoop (2012-12-06). "Yakuza, SaGa, Resident Evil and More Coming to GREE". Andriasang.com. Archived from the original on 2012-08-11. Retrieved 2012-07-15.
  26. "The History of SaGa". Retro Gamer. No. 180. Imagine Publishing. 2018-04-19. pp. 80–85.
  27. GREE版「エンペラーズ サガ」で第4章「アーカシック・バベル」篇が配信に. 4Gamer.net (in Japanese). 2015-02-02. Archived from the original on 2015-04-27. Retrieved 2026-07-07.
  28. 「ファンタジーアース ゼロ」インタビュー。「エンペラーズ サガ」とのコラボの背景にある開発者の10年越しの思いや,フェンサー/セスタス改修の進捗などを聞いた. 4Gamer.net (in Japanese). 2013-09-02. Archived from the original on 2025-01-08. Retrieved 2026-07-07.
  29. シリーズの垣根を越えて『FF』と『サガ』のコラボが実現!. Famitsu (in Japanese). 2013-12-17. Archived from the original on 2013-12-21. Retrieved 2026-07-07.
  30. 「ブレイブ フロンティア」と「エンペラーズ サガ」がコラボイベントを開催. Game Watch Impress (in Japanese). 2014-02-03. Archived from the original on 2026-03-06. Retrieved 2026-07-07.
  31. iOS/Android版『拡散性ミリオンアーサー』と『エンペラーズ サガ』の期間限定コラボイベント“邂逅!セルマのブリテン送り”が開催中!. Dengeki Online (in Japanese). 2014-09-22. Archived from the original on 2016-08-09. Retrieved 2026-07-07.
  32. 『サガ』×『聖剣伝説』コラボ記念対談! 『聖剣伝説5』や河津秋敏氏による最新作はどうなる?. Dengeki Online (in Japanese). 2014-06-30. Archived from the original on 2017-02-10. Retrieved 2026-07-07.
  33. 「最強ガーディアン・クルス」で「エンペラーズ サガ」とのコラボイベント. 4Gamer.net (in Japanese). 2015-08-21. Archived from the original on 2016-03-15. Retrieved 2026-07-07.
  34. 「エンペラーズ サガ」が2017年4月28日15:00をもってサービス終了に. 4Gamer.net (in Japanese). 2017-02-28. Archived from the original on 2026-02-11. Retrieved 2026-07-07.
  35. 社員インタビュー - ディレクター. AltPlus (in Japanese). 2013. Archived from the original on 2017-02-06. Retrieved 2026-07-07.
  36. 「エンペラーズ サガ」,登録者数が100万人を突破。記念キャンペーンが開始. 4Gamer.net (in Japanese). 2013-10-18. Archived from the original on 2024-07-23. Retrieved 2026-07-07.
  37. グリー、「GREE Platform Award 2012」受賞アプリを決定 (in Japanese). Gree. 2013-03-07. Archived from the original on 2013-07-01. Retrieved 2026-07-07.
  38. Baker, Michael (2012-09-20). "Impression/Rant - Emperor's SaGa". RPGamer. Archived from the original on 2013-01-20. Retrieved 2013-02-11.
  39. Chris Pereira (2012-09-20). "Japanese Cell Phone Treasures: 5 Mobile Games We Won't Be Seeing". 1UP.com -. Archived from the original on 2016-08-08. Retrieved 2013-03-31.
  40. Agnello, Anthony John (2012-10-08). "So Long Zynga: Mobile continues to eat up PC social gaming's audience". Digital Trends. Archived from the original on 2013-03-10. Retrieved 2013-04-14.
  41. 「ロマンシング サガ2 リベンジオブザセブン」七英雄の再帰還を迎える前に振り返るシリーズの変遷・後編(PlayStationの時代〜現在編). 4Gamer.net (in Japanese). 2024-09-19. Archived from the original on 2026-02-16. Retrieved 2026-07-07.
  42. Donaldson, Alex (2017-12-08). "Square Enix explains why after 25 years cult classic Romancing SaGa 2 is heading West for the first time". VG247. Archived from the original on 2020-11-09. Retrieved 2020-05-03.
  43. 『サガ エメラルド ビヨンド』最速インタビュー。6人5組の主人公や、『サガ』シリーズにおいてもっとも変化する物語の見どころを河津秋敏氏に訊く. Famitsu (in Japanese). 2023-09-15. Archived from the original on 2023-09-15. Retrieved 2023-09-16.
  44. もう一度、皇位継承したい『サガ』ファン注目! 『インぺリアル サガ』開発スタッフインタビュー. Famitsu (in Japanese). 2015-05-29. Archived from the original on 2016-03-14. Retrieved 2017-12-27.
  45. Think and Feel - Projects (in Japanese). Think and Feel. Archived from the original on 2017-06-14. Retrieved 2017-12-27.
  46. Ike, Sato (2014-12-14). "Square Enix Announce Imperial SaGa For PC". Siliconera. Archived from the original on 2014-12-22. Retrieved 2017-12-27.
  47. 『インペリアル サガ』12月26日をもってサービス終了に―続編としてHTML5での新作制作を予定. Inside Games (in Japanese). 2019-03-25. Archived from the original on 2020-08-09.
  48. ダルカイザーやバレンタインイベントの裏話も。『インサガEC』1周年インタビュー(シナリオ編). Dengeki Online (in Japanese). 2020-10-31. Archived from the original on 2024-05-30. Retrieved 2026-07-04.
  49. 連営からのお知らせ (in Japanese). Square Enix. 2024. Archived from the original on 2024-12-09. Retrieved 2026-07-04.
External links