Hi everyone,

I'm trying to access the Lua scripts of Dynasty Legends 2 for development/research purposes.

I extracted the game files from the APK but the Lua files appear to be encrypted/obfuscated. I can't read or decompile them.

- Game: Dynasty Legends 2 (mobile/PC)
- Engine: Unity Engine
- What I tried: unluac, standard Lua decompilers, basic XXTEA tools

Has anyone dealt with this game's Lua encryption? Or can anyone suggest a general approach to hook and dump decrypted Lua from memory (Frida, etc.)?

Any help or pointers would be appreciated.

Data(Lua's).rar

The lua files are encrypted with a modified version of XXTEA. I downloaded Dynasty Legends 2 through Steam and based the research on that build of the game. The key is stored as four masked values, and the game uses a different number of rounds than standard XXTEA. I also confirmed that the same key works on the lua files you provided.

Python script and article will follow soon.

Edited 1 hour ago1 hr by Falkrian

Great job! Do you have the option to share keys? The keys I have are very old and don't match.

private static uint[] EptKey = new uint[4] { 3868955369, 2313599136, 2963072427, 849839077 };

Give this a try.