How to change scripts in the client 3D game?

Question

Programming

Good day. I want to make a reservation right away that I am familiar with programming, therefore a detailed description is useless.
PandoraSaga is a Japanese client based MMORPG. At one time, there was support for the Russian-language version, but after that all the servers were closed, but the benefit of the version itself remained. I would like to know how to change the files of the original Japanese version of the game so that it perceives the files of the Russian version as original. The main problem is that when opening game files with a regular text editor, reading the program code is impossible due to a chaotic set of obscure characters. The Japanese language is set (both), because the problem here is not in Japanese, but in encryption. Unfortunately, I don’t even know what programming language client games are created in, since I specialize in languages ​​for browsers.
Thank you in advance.

Answer 1

There is such a thing as a compiler . In a sense, this is encryption, but irreversible. The source code in its original form will not be available. There are programs, disassemblers, that allow you to get the lowest level code from the compiled code. However, game makers usually do not like someone to dig into their code and produce obfuscation . Therefore, to understand the code of another game, you need to make a lot of effort.
Another thing is that since someone has done this, you can look for existing solutions. Perhaps you will find files for English.

Answer 2

I hope you understand that when answering your question, people can fall under the article of the Criminal Code, and not only the Russian Federation?
PS Do you open binary files in a text editor?