MIXI has announced the end of service for its smartphone apps, Tower of Sky and Mystery Record, which were developed as part of the MONSTER STRIKE series.
モンストシリーズ最新作「タワーオブスカイ(TOWER OF SKY)」を先行体験！わかりやすさと奥深さが共存したゲームシステムが魅力！
Tower of Sky and Mystery Record to End Service
【重要】サービス終了のお知らせ(1/2)
いつも『タワーオブスカイ』をご利用いただき、誠にありがとうございます。この度『タワーオブスカイ』は、2024年3月26日をもちまして、サービスの提供を終了させていただくことになりました。…
— 【公式】タワーオブスカイ（タワスカ） (@TowerOfSky) December 26, 2023
Tower of Sky and Mystery Record will end service on Tuesday, March 26, 2024. Tower of Sky was released on Tuesday, February 28, 2023, and Mystery Record on Thursday, March 30, 2023, meaning their service lasted about one year.
【重要】サービス終了のお知らせ
いつも『ミステリーレコード』をご愛顧いただき誠にありがとうございます。
この度『ミステリーレコード』は2024年3月26日をもちまして、サービスの提供を終了させて頂くことを決定いたしました。… pic.twitter.com/PaEVLttYCO
— 【公式】ミステリーレコード（ミリコド） (@Miricodo) December 26, 2023
MIXI developed both apps as part of the MONSTER STRIKE series, carrying on the universe of its flagship smartphone app, MONSTER STRIKE. They drew attention by featuring popular characters from MONSTER STRIKE, such as Lucifer and Pandora, successfully attracting players from the original game as well.
Tower of Sky released its event schedule leading up to the end of service.
Although the games attracted new players through crossover events like the Hololive collaboration, the sudden end-of-service announcement brought an outpouring of sadness on social media. For details regarding the end of service, please check the official Tower of Sky website and the official Mystery Record website.