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Android 6.0.1 to 10.x (Legacy Launcher)

This method uses the legacy KRFN-launcher which is compatible with older Android versions.

Prerequisites

  • An Android device (or BlueStacks emulator running the latest version) with OS version 6.0.1 up to 10.x.
    • Note: Android 5 and Android 11+ are not supported by this launcher.
    • Verified to work on Zenfone 4 (Android 7/8).
  • Game Client APK (Version 3.6.0).
    • If you have already updated to 3.7.0, you must completely uninstall it before proceeding.
  • KRFN-launcher APK (Version 1.0.0-beta).

Setup Steps

  1. Install Applications: Download and install both the Game Client (3.6.0) and the KRFN-launcher APKs.
  • If prompted, enable "Install from Unknown Sources" in your Android system settings.
  1. Open the Launcher: Always open the game via the KRFN-launcher app. You can safely remove the shortcut for the main game app from your home screen.
  2. Grant Permissions (First time only): Allow the launcher access to the device's storage. This permission is mandatory for patching.
  3. Configure Endpoint Settings (First time only): Open the settings screen inside the launcher, enter the custom server configuration, and tap the save icon (top right) to save settings.

Configuration Values:

  • Server Hostname (Server Host) (max 20 chars): Refer to endpoints.md
  • Asset Hostname (Asset Host) (max 30 chars): Refer to endpoints.md

Important

  • Obtain these values from the community as guided in endpoints.md and match the characters exactly, including all symbols.
  • Do not include protocols like http:// or https:// in the input fields.
  • Keep these addresses confidential within the community.
  1. Start the Game: Tap Start Game (ゲームを起動) in the launcher. If successful, the game will boot and connect to the custom server.

Troubleshooting

  • How does it work?: The launcher modifies the connection endpoint metadata in the game client on execution. Since files are not permanently modified, you must launch via the launcher app every time.
  • Error: "USB Debugging Enabled" / "Root Detected":
    • The launcher cannot bypass the client's internal security checks. If you have root or USB debugging enabled:
      • For Root: Hide root using Magisk, LSPosed, and Shamiko, or disable/remove root.
      • For USB Debugging: Turn off USB Debugging in Developer Options, or use Wireless Debugging instead.
  • Error: App fails to start or shows hints: Free up system resources by closing background apps and try again.