The file format of executable games created using GameMaker 8.1 has been cracked and a GameMaker 8.1 decompiler has been released.
Until now games created using GameMaker 8.1, which promised “new, more secure .EXE encryption”, were “safe” from having their source code revealed.
This latest release is actually an updated version of the original Game Maker 8 decompiler. I would imagine that the decompiler could quickly be rendered useless thanks to the system used by YoYo Games to push out regular updates to GameMaker 8.1 users. Or a more speedy game of cat and mouse could ensue.
Writing on Twitter prior to 8.1’s release GameMaker developer Mike Dailly described the new encryption as “nothing amazing” but added that it “should block things for a little while” and that he “could even change it with each release”.
The most recently released GameMaker decompiler was able to turn iOS apps released by YoYo Games into a computer editable Game Maker file. That was developed as a stepping stone in a project working towards developing a, subsequently abandoned, Game Maker iOS compiler which could attach YoYo Games’ iOS runner on to any editable Game Maker file.
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