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carlimarli, posted Wed Jun 23, 2021 12:13 pm (64857)

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The game uses a custom engine made by VectorUnit

I've figured out the rest of the file structure (which was pretty straight forward), only missing one part of it
I would assume these bytes would be some sort of a checksum but I haven't been able to confirm that myself

sample file:

aluigi, posted Wed Jun 23, 2021 12:23 pm (64858)

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Those 4 bytes are a 32bit checksum of the compressed data.
There is a script for quickbms called crc_scan.bms that does a great job at spotting the correct checksum algorithm of the many implementations and settings available.
Once dumped the output of the script in a text file it's enough to search fbd4a6ac (or aca6d4fb since the script dumps both endianess).
The algorithm is the number 38 corresponding to fnv32.

carlimarli, posted Wed Jun 23, 2021 1:34 pm (64861)

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Thank you!