I don't think we can decrypt the files this time, he encrypted them in a way so that the key can't be extracted with public tools and he wrote it in the source code
(Google translate)"
//Hello, cracker. Welcome to the maze I designed. // //If you open the source code just because of your hobby, please leave immediately. This is not the place you should stay. //Making games is not easy, and I will not allow you to trample on the achievements of game designers. //The keys have been broken up and distributed in the random maze by me. If you think that a simple alert can find the key, then let's wait and see.
"
after that message there are a ton of lines of code like this
Decrypter.map_code_drIllup =[25,54,61,23,33,64,9,91,75,16,2,70,62,46,86,67,55,79,7,10,63,80,76,1,12,57,28,35,47,4,88,53];