View source for Mashiro Witch (partially found defunct Japan-exclusive mobile role-playing game; 2017-2020)

{{LMW
|title=Mashiro Witch (ましろウィッチ)
|description=Defunct Japanese Square Enix mobile game
|startyear=2017
|timeframe=Yes
|endyear=2020
|image=352377510 190358026953717 3250199222274868867 n.png
|imagecaption=App icon for Mashiro Witch
|status=Partially lost
|comment=APK for installer found, installation no longer possible
|category=Lost video games
}}
{{NeedingWork|improper formatting}}
Mashiro Witch (ましろウィッチ) was a magical girl-inspired mobile game developed by Square Enix, released for mobile devices in 2017. 
The game was exclusive to Japan, and its servers were shut down in 2020.

In the game, players would take control of a customizable magical girl to partake in RPG-style battles, together with other players.
The game was generally received rather poorly for its allegedly lackluster story and reliance on luck-based gacha-mechanics. Though some have also expressed their enjoyment of the game and lamented its shutdown.
Alongside its shutdown, Square Enix offered refunds to players.

Notably, in 2019, Mashiro Witch had a crossover with the popular "Umineko When They Cry" visual novel series by 07th Expansion. 
During this collaboration, the Mashiro Witch characters would appear with custom portraits in the original Umineko When They Cry artstyle, and players would be able to obtain costumes based on the characters in Umineko When They Cry.
On top of this, players would be able to fight "Beatrice", the main antagonist of Umineko When They Cry, in a temporary boss battle. Notably, this is the only known time the character of Beatrice has ever received an official 3D model.
This event was available for two weeks. Any of the files related to it currently seem to be lost, though the announcement trailer can still be watched online as evidence of the event.

Currently, APK files for multiple versions of the game can be found online.
Unfortunately, these APK files only install the launcher that would normally access the online servers and download the rest of the files. Naturally, these online servers have been shut down. Therefore, the game and its files currently seem to be lost.

In the event that an ex-player still holds on to the full game files, it's possible the game could be recovered in some shape or form.

'''Sources:'''

https://apkpure.com/jp/%E3%81%BE%E3%81%97%E3%82%8D%E3%82%A6%E3%82%A3%E3%83%83%E3%83%81/com.square_enix.android_googleplay.mashirowitch/versions
(Website hosting defunct APK files for the game's launcher)

https://youtu.be/YBTDvw88584?si=EIStdF71UASlqp-M
(Trailer for Umineko When They Cry crossover event)

http://www.jp.square-enix.com/mashirocchi/
(Website for Mashiro Witch, now merely a page featuring refund information)

https://07th-expansion.fandom.com/wiki/Mashiro_Witch
(Mashiro Witch on the 07th Expansion wiki)