If you are a student: Use decompilation to learn, not to cheat. Reading how Spelunky works is fascinating; copying it verbatim to Steam Greenlight is career suicide.
The GameMaker 8 decompiler was a reverse-engineering tool that could take that final .exe file and peel it apart. It reversed the compilation process, extracting the embedded data and converting the low-level bytecode back into readable GML code and editable resources. In essence, it turned a finished, un-editable game back into a .gmk (GameMaker file) project. gamemaker 8 decompiler
In modern GameMaker, these chunks are compressed and encrypted. In GameMaker 8, they were lightly compressed (often just zlib) and literally . The magic number Form or Gen8 often appears at a specific offset. If you are a student: Use decompilation to