Houkai Gakuen Wiki
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Houkai Gakuen 2 (Chinese: 崩坏学园2, translated: Honkai Academy 2), formerly known as HSoD The end of School, Zombiegal Kawaii and Guns Girl Z, a classic 2D side-scrolling shooter game from miHoYo (also known outside of China as HoYoverse).

On March 28, 2014, disaster called "Houkai" broke out in Chiba High School, Nagazora City. Kiana, who claims to be the "Valkyrie", embarked on her own destiny.

What? Don't know about Houkai Gakuen 2 yet? Hurry up, go to the home page and click the [Download] button over there then join the battle against Houkai!

Server list[]

China server[]

Houkai Gakuen 2 Logo

This is the original server with latest update, latest beta test and having most exclusive contents.


Platforms Publishers (Server) Accounts Status
iOS miHoYo (S1, Official) miHoYo Pass

Crossplay
Shared leaderboard
Shared account login platform

Android
Android Bilibili (S2, 2 different servers) Bilibili Shared leaderboard
Independent account login platform
Mix servers (S3) Buka
Downjoy
QQ
Sina/2144
iQiyi/37Play
Baidu
Other Mix accounts
Shared leaderboard
Shared client
Independent account login platforms
Merge to official miHoYo server if closed
iOS Wonderland (S4, Original Test Server) miHoYo Pass Shared server with S3
Shared client with S3
Android
iOS Advance server (New test server) miHoYo Pass Automatically remove test accounts after test ended.
Android

JP server[]

Houkai Gakuen JP Logo

Japanese is usually few versions behind CN server and does not have some collab contents.

SEA / NA server (Closed)[]

Guns Girl Z Logo

English server of Houkai Gakuen 2 was previously published by Shanghai Fangcun (上海方寸 or 4inch), later was acquired by miHoYo in 2017.

SEA (South East Asia) app name was called Guns Girl - Honkai Gakuen (formerly School DayZ) and NA (North American) server was called Mirage Cabin (formerly Escape Ragnarok). Both servers were closed in October 11 2021 GMT +8.

  • Timezone: GMT+8 (SEA server) and GMT-5 (NA server)

KR server (Closed)[]

Kaiwaii Hunter Z logo

Korean server of Houkai Gakuen 2 under the name of 카와이헌터Z (Kawaii Hunter Z), was previously published by FingerTips, closed in 2015.

The game development and game engine[]

"The development process of "Houkai Gakuen": Demo in 3 months, development completed in 2 years.
After the gameplay of "Houkai Gakuen" was decided, we started to do it with Unity, because this engine is more convenient. At that time, we didn't know how to make the game, how to handle the value and the system, we said that regardless of it, we will make a game with a core gameplay that is fun, and the core gameplay that everyone recognizes is OK, we will talk about making money later, earn money depends on destiny. Based on this gameplay to make version iterations, at that time, there were 4 people in the team, 1 of them didn't work, and there was 1 programer, 1 planner, and 1 artist to do things.
The core gameplay of the game is to make a 2D horizontal version of the side-scrolling shooting game, the animation is made with Maya because when we were doing the core gameplay, we used Unity version 3.2 to 3.5 and there was no such a suitable development tool, so we did it with Maya. This also gives the art enough space to do this. In the next 8 months, the gameplay was expanded, and the values were also adjusted and added some systems. But we don't think there is any breakthrough during this period.
" Developer's 2014 interview

Game engine versions[]

These are possible game engine versions used from Houkai Gakuen 1 to latest ver:

  • Unity 3.2 - 3.5 (Houkai Gakuen 1 original)
  • Unity 4.1.2f1 (Houkai Gakuen 1 EN v1.5.5 / CN v1.6.3)
  • Unity 4.5.5f1 (Houkai Gakuen KR server v2.2)
  • Unity 4.6.6 (Houkai Gakuen 2 v2.3)
  • Unity 5.3.5 (Houkai Gakuen 2 v3.2)
  • Unity 5.4.4 (Houkai Gakuen 2 v4.0)
  • Unity 5.6.4 (Houkai Gakuen 2 v5.0)
  • Unity 2018.4.32f1 (Houkai Gakuen 2 v8.1)

Middleware used with the game engine[]

The list of middleware are analyzed from the game package.

  • FMOD (Former sound engine)
  • Maya
  • Audiokinetic Wwise
  • Live2D
  • Esoteric Software Spine

FAQ[]

This is an unofficial FAQ, please don't take this too seriously.

Device incompatible / game run too slow[]

Make sure your devices having at least Android 5.0 (according to version 8.0 game engine limit).

  • Optional requirement 1: Having at least OpenGL ES 3 with ASTC texture support.
  • Optional requirement 2: Snapdragon 845 CPU performance and Mali G71 MP2 GPU performance for smooth 60FPS for most of game contents.

Didn't receive crystal after in-app purchase[]

This is caused by delay in Google Play and game server. If you still didn't receive crystals after a long time, please contact email/contact systems depending on region played along with your ID and game name.

Stuck at loading screen[]

This is usually an issue between player's internet and game server or game server can't process data. Please use VPN or wait for a while until the server is stable.

X weapon cannot evolve[]

  • The current weapon have higher weight limit than character carry.
  • If it ask for DLC, go to DLC and uninstall weapon from Kyuusyou's weapon.

Recommended emulator[]

It is recommended to use Mumu for the best possible performance when playing Houkai Gakuen 2.

  • It is recommended to allocate 1-2 CPU cores as the game cannot utilize more than 2 cores.
  • You can allocate up to 3GB of RAM, more RAM beyond this amount does not give more performance.
  • The game does not require a dedicated GPU to play, Intel® HD Graphics 630 along with Dual-channel RAM should be more than enough to play this game.

File Directory[]

By default, Houkai Gakuen 2's file directories are located in the following file paths on Android:

  • Non-root: Internal storage/Android/data/com.miHoYo.HSoDv2Original
  • Root: Internal storage/data/data/com.miHoYo.HSoDv2Original

Non-root folder[]

Most files are unencrypted and it is possible to use available tools on the internet to extract game files.

data-all.unity3d[]

This file is located in files/Data/AssetBundles, seems to be encrypted and may contain in-game strings and game data structures. Currently no possible way to decrypt this data.

IL2CPP folder[]

Contain game logics, currently no possible way to dump game logics directly using available tools from the internet.

Res folder[]

Contain most of game assets, AssetBundles folder stores game engine assets, and StreamingAssets stores Wwise soundbank packages and videos (in H264 format).

Notable game assets
File name Content descriptions
assetbundle_20 Contains game loading CG icons and Fire Moth DLC skill icons.
assetbundle_58 Contains loading screen and login images (named CG_iPhone). May also contains minor assets.
character_player_costumedata Contains costume parts that are used to construct chibi playable characters in-game. 1160 (Homu's Oath) and 1157, 1158 and 1501 (Siegfried Heart) outfit data changes when new playable characters are added.
character_player_weapondata Same behavior as costumedata but weapon images.
dlc_dlcbg Fire Moth DLC's main menu BG, changes when player progress certain part of story, total 3 BGs.
general_wsdata Wwise soundbank info, contains names of soundtracks and other stuffs related to it.
inlevel_scene_scene Scenes used in battles.
menusv2_appreciation_cg Battle loading CGs.
menusv2_comic_41 Retrospect Prologue comic
menusv2_comicstory_comicstory In-battle comics.
menusv2_equipment_allequipmentfigures Full weapon images that is used to show in equipdex.
menusv2_figure Full character image.
Pck_Bgm HoukaiCOLLE music
Kiana.mp4 Newborn R13 final act video
Youtou.mp4 Legacy L4 Hokushin Mei battle video.

Trivia[]

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