Port Legacy Unity Game to arm64
Budget: $10 – $30 USD
I have a single APK of a Unity mobile game that was originally shipped for armeabi-v7a and relies on Granny v1.7.3. To keep it alive on modern devices I need it rebuilt for arm64-v8a so it launches cleanly on Android 14/15.
Here is the public download I work from:
https://rdo209k.itch.io/granny-super-fast-mode-mobile-v2
Scope of work
• Decompile the APK, study the IL2CPP layout (please confirm nothing scrambles when you dump the binaries).
• Swap or patch every 32-bit engine structure—Granny runtime, libil2cpp, libunity, etc.—so they resolve correctly at 64-bit.
• Re-compile and package an arm64 build, keeping gameplay mechanics identical; UI quirks and IAP can stay untouched.
• There are no third-party plugins to contend with.
• I only have the APK, not the original Unity project.
Deliverables
1. Signed (or test-signed) arm64 APK that installs and runs crash-free on a Pixel 8 (Android 14) and an emulator set to Android 15 preview.
2. Brief change log outlining the key binary edits, tools used (e.g., Unity IL2CPP dumper, Android NDK, Ghidra/IDA, apktool, etc.).
3. Optional: patch files or scripts so I can reproduce the build if Google updates its 64-bit requirements again.
The price is open—please quote what you feel is fair for a deep binary-level port of this scale along with an estimated turnaround.
Here is the public download I work from:
https://rdo209k.itch.io/granny-super-fast-mode-mobile-v2
Scope of work
• Decompile the APK, study the IL2CPP layout (please confirm nothing scrambles when you dump the binaries).
• Swap or patch every 32-bit engine structure—Granny runtime, libil2cpp, libunity, etc.—so they resolve correctly at 64-bit.
• Re-compile and package an arm64 build, keeping gameplay mechanics identical; UI quirks and IAP can stay untouched.
• There are no third-party plugins to contend with.
• I only have the APK, not the original Unity project.
Deliverables
1. Signed (or test-signed) arm64 APK that installs and runs crash-free on a Pixel 8 (Android 14) and an emulator set to Android 15 preview.
2. Brief change log outlining the key binary edits, tools used (e.g., Unity IL2CPP dumper, Android NDK, Ghidra/IDA, apktool, etc.).
3. Optional: patch files or scripts so I can reproduce the build if Google updates its 64-bit requirements again.
The price is open—please quote what you feel is fair for a deep binary-level port of this scale along with an estimated turnaround.