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trumank / uesave-rs

Rust library to read and write Unreal Engine save files
MIT License
277 stars 55 forks source link

Frostpunk 2 parsing possible? #39

Closed Willian-Zhang closed 2 months ago

Willian-Zhang commented 6 months ago

Thank you for making this amazing project!

I've been trying to decode FP2 save file and make a tool that make meaningful changes to it. So far I have been successfully uncompress and recompress the game save from its raw save file 1.sav.zip with a custom tool that I built however can't seem to parse the seemingly GVAS content: 1.sav.bin.zip There I found your tool amazing tool that could do GVAS parsing and maybe? unknown inline binary skipping. Are you interested at looking into this a bit?

The file was saved with name 1 in case of you wonder what repeating of that text mean.

trumank commented 6 months ago

This obviously uses components of Unreal Engine serialization, but it structurally doesn't look at all similar to a typical UE save file. There is no GVAS magic, the header with UE version information is not present, and the properties don't really look right. To me it looks like a custom parser would be required.