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UnSave

UnSave is an extensible (de)serializer for Unreal Engine 4 save files.

In short, this library can be used to read in unencrypted UE4 save files, parse the data/properties included, and (optionally) write that save data back out to a .sav file.

Note that this library is intended for usage in libraries/apps and does not include a user-friendly format. For that, use the excellent gvas-converter.

This library is in an extreme alpha state and probably shouldn't be relied on in it's current state until I've tested and refactored it a bit more.

Credits

Huge thanks to @RagingLightning and Ilya/@13xforever for their work on gvas-converter. That tool is amazing and a huge design inspiration (as well as filling in a few gaps in my knowledge) for building this.

Honestly, for most use cases, gvas-converter is the better choice: UnSave is only intended for scenarios where extensibility and customization are crucial.