Marie's Wonderland

An attempt at a private server implementation for mobile game NieR Reincarnation.

Game information

• Built in Unity 2019.4.29 with C# and IL2CPP
• Has a GRPC-based server
• Has a web-based API

Requirements

PC

• Android Platform Tools
• Visual Studio 2022
• Visual Studio Code or similar text editor
• ngrok or similar
  • HTTP/2 support is required
• Frida tools

Phone

• Latest version of the game installed (v3.7.1)
• Rooted Android device
  • USB debugging enabled
  • Frida server installed and running

How to run

• Connect your Android device to your PC and ensure it shows up when executing the following command: adb devices
• Run the GRPC server
  • Open the MariesWonderland.sln solution and run the project. The server runs on ports 7777 (HTTP) and 7776 (HTTPS)
• Run ngrok
  • Execute the following command: ngrok http --app-protocol=http2 7777
  • Take note of your public ngrok domain
• Hook and run the game
  • Open frida/hooks.js in VSCode and change the variable SERVER_ADDRESS to your ngrok domain
  • Execute the following command from the VSCode terminal (adjust the file path): frida -Uf com.square_enix.android_googleplay.nierspww -l "path\to\hooks.js"