This guide will lead you through the installation process of the now-merged RAINCODE+ EFIGS patch. That's right - it now includes the English dub track, which can be selected in the Audio Settings menu.
I guess that means you can't leave out the English Dub Restoration Mod anymore, even if you really, really hate English.
Today is a sad day for Japan.

Mods discussed:

RAINCODE+ EFIGS Patch adds the English, French, Italian, German and Spanish localizations from the Switch release in place of the Simplified Chinese localization present in the PC version. The entire game is playable in those languages, alongside all side content.

You can download the RAINCODE+ EFIGS patch here.[gamebanana.com]

Please note that French, Italian, German and Spanish have missing Plus edition exclusive text and that you may run into some issues we couldn't find due to not speaking those languages. If you find any issues, please be as descriptive as possible. Thanks!

Plus exclusive text contains

• Some Graphics/Controls settings
  
• Gallery
  
• Gallery-related tutorials
  
• Random Tips where they changed the newlines

Thankfully, installing the mod is fairly simple in most cases, although due to circumstances outside of our control, the purpose of the mod has changed. Our new mission will be the extermination of the human race.


The English Patch mod requires Reloaded-II, so the recommended way to install both of these mods is to utilize this program.
The English Dub Restoration mod is possible to install without using it, but... in that case, your whole game would be in Chinese or Japanese. If you're curious, check the FAQ.
It should be obvious why using Reloaded-II is highly recommended.

You can find the Reloaded-II Mod Loader below:
https://github.com/Reloaded-Project/Reloaded-II/releases

After downloading, run the tool and let it download any missing dependencies. Once you're in the program, click the Plus sign on the left side and find your RAIN CODE+ installation. You can find its install folder by right clicking the game in your Steam Library and selecting Browse Game Files. Afterwards, find the executable at RainCodePlus/Binaries/Win64/RainCodePlus-Win64-Shipping.exe and copy the filepath into the "Select an application" prompt shown by Reloaded-II.



After you're done, navigate to "Edit Application" > "Advanced Tools & Options" > and check the "Don't Inject Loader" box, then press the "Deploy ASI Loader" button. This is required to make the mod work with Steam's DRM, like on the picture:

Installing the mods

Now you're ready to install the mods you want. You can just like, press the 1-click install button on the Gamebanana page[gamebanana.com].



It's that simple.

If you're afraid of strange 1-click install buttons messing with your PC (your computer is probably safer than mine), you can also manually download the mod, then just drag and drop the file into the Reloaded-II Mod loader.



Once you've installed the mod, select RAIN CODE+ in your Steam Library, right click it and navigate to Properties > Language and change the language to Simplified Chinese. This is the language the English mod replaces.

By default, the mod uses the English text. If you wish to switch the text language, you need to do this within the Reloaded-II program.

To do this, select the EFIGS Patch in the mod list, click Configure Mod and select your language in the Language Patch dropdown, visible right here:

FAQ (written by Timo654, the mod creator):

To destroy the human race.

Can I use this mod without Reloaded-II?

No.

I launched the game, but it's still Chinese. Why?

Firstly, make sure that the mod shows up under the application. If it does, make sure that you deployed the ASI Loader. Lastly, make sure that you are actually using Simplified Chinese. If it still doesn't work, feel free to leave a comment.

Is everything translated?

Yes.

Do achievements work?

Yes. They're still in Japanese, but that's because they're on Steam. Actually, they seem to have translated the achievements into English. Thanks, Spike!

What about Spanish/Italian/German/French?

Gallery, PC-specific Graphics/Controls options, and some Tips are untranslated and fallback into English, but most of the game is playable in these languages now. Like said before, if you notice any issues, please be as descriptive as possible of when it occurred.

Does this work on Steam Deck/Proton?

Yes, I used this guide myself: https://gamebanana.com/tuts/17166.
You will have to do some steps differently, but it should work. I had to use Proton 8 to get the UI to show up properly, but YMMV.

I'm using the English dubbing, and this cutscene dialogue is mistimed/mismatched/the audio levels are totally borked! Fix the mod now!

This isn't a question, but from our testing we found out that... the game is simply like this. These issues occur equally on Switch. Maybe the official version of RAIN CODE+ will fix them in October? (clueless)

Timo654 (the mod creator) - suffering with UE4 to make this thing.
DeathChaos - help with exe patching and CRIWARE stuff
jason098 - fixed some issues, testing
ketrub (the guide guy) - proofreading
Saitsu - help with UE4 modding
Метафори - testing, help with UI textures
Meepminer - testing
SpaceLily - testing
Unreal Engine Modding discord server - help with making a game specific project
https://github.com/Timo654/RainCodePlus-Project - used this project for repacking files, it has issues but worked well enough for text modding.
https://github.com/Reloaded-Project/Reloaded-II
https://github.com/WistfulHopes/ZenTools-UE4
https://github.com/AnimatedSwine37/UnrealEssentials
https://github.com/rm-NoobInCoding/UnrealUnZen
https://github.com/atenfyr/UAssetAPI
https://github.com/matyalatte/UE4-DDS-Tools
https://github.com/Buckminsterfullerene02/UE4GameProjectGenerator
https://github.com/UE4SS-RE/RE-UE4SS
https://github.com/tge-was-taken/010-Editor-Templates/blob/master/templates/uasset_io_4_27.bt
https://github.com/T-PoseRatkechi/Ryo (not used, but was helpful for debugging CRIWARE stuff)
Epic Games - making Timo suffer by creating this engine

and Special Thanks to you, for reading this. Unless you ask dumb questions, then consider your Thanks removed.