Possible to go the other way from steam save to xgp? about xgp-save-extractor

[Z1ni]

I'll try to look into this later today.

[jakest]

Agreed. Would love to have the other way supported.

[miffril]

I managed to split save file to container parts based on this comment. I tested it by converting XGP saves to nonXGP and splitting them back. They seem to be identical except for the padding part. I also tried to run it on my nonSGP 10 MB save, it created 115 parts. It would be great if someone confirms if it is okay for large saves in XGP. Now need to understand how to create index files.
ps Please don't judge my code, I'm not a programmer and first time working on a byte level 😅

import os
import zlib

tmp_files_path = "F:\\TEMP\\saves"
save_file_path = "C:\\Users\\miffr\\Documents\\My games\\Starfield\\Saves"
save_file_name = "1.sfs"

def write_file(file_index, data):
    with open(os.path.join(tmp_files_path, f"container{file_index}"), "wb") as container_part:
        print("Writing file")
        container_part.write(bytes(data))
        print(f"File name container{file_index}")
    return

def main():

    with open(os.path.join(save_file_path, save_file_name), "rb") as save_file:
        position = 0
        byte_1 = b"x"
        byte_2 = b"^"
        tmp_bytearray = bytearray()
        files_found = 0
        while(byte := save_file.read(1)):
            if(byte == byte_1):
                position = save_file.tell()
                next_byte = save_file.read(1)
                save_file.seek(position)
                if(next_byte == byte_2):
                    if(files_found == 0):
                        write_file(files_found, tmp_bytearray)
                        files_found += 1
                        tmp_bytearray = bytearray()
                    else:
                        try:
                            print("try to decompress")
                            zlib.decompress(tmp_bytearray)
                        except zlib.error as z_exept:
                            print(f"Failed to decompress: {z_exept=}")
                        except Exception as e:
                            print (f"Failed to decompress: {e=}, {type(e)=}")
                        else:
                            write_file(files_found, tmp_bytearray)
                            files_found += 1
                            tmp_bytearray = bytearray()

            tmp_bytearray += byte
        write_file(files_found, tmp_bytearray)
        print(f"Containers found {files_found}")

if __name__ == "__main__":
    main()

[Mapedmaker]

this would be extremely helpful

[murder46]

I would absolutely love this if at all possible. Thanks for all your hard work

[DrDoakes]

Agreed would love this feature

[NSFLscott]

Same here would love to go from Steam to XGP!

[tggoulart]

I really need this feature now that I'm moving to gamepass

[MrN0ss]

I think the problem is that the saves are encripted (i think) and the encryption key is changed with each game, you have some tools like GPSaveConverter, i tried and wasn't able to get anywhere (no updates since January) and also another was this MollysGameSaveMule witch alow the bi-directional save transfer only for Deep Rock Galactic, but with the idea of the games on gamepass being temporary and that now with this services even your saves are not your's anymore i think this aplication would be a great thing for people who would like to have their saves... well safe
Also for new game plus saves on nexus would work either if it is steam or XGP

[Bcawesomer]

This is not only helpful to pirates @rubensmello being able to download steam saves and use them for game pass games would be an excellent software that someone should have made a while ago. The process of getting a steam save to a game pass save is a pain and would be nice to have a software that does it especially if it works on other gamepass games😁

[rubensmello]

Is this really necessary!
A lot of people started playing the version that was pirated (steam) and now that it was released on gamepass, they want to change the version...

[JupiterOdyssey]

Need this too. Thanks for the developer!

[Xmentiroso]

I detect the save game folder but Gamepass use another system for store saved points. Is posible reverse the .sfs files to the model of Gamepass? Thanks!

[tosziro]

I think soulution i here: #5 (comment) but... I dont understand it.

[MiriaWeakSmile]

I'm also waiting for a decision, I want to switch to game pass, but I don't want to lose the progress received in the torrent version. I will be grateful for the answer

[alexdie]

If you need any help testing the steam -> xpg conversion, I've got appropriate savegames and installations that aren't a big loss if broken.

[Amnessie]

Yeah I would really appreciate this too!

[Whatevser]

I was hoping to be able to use the 'load' command in console to load my save, I've tried putting it everywhere during the game running hoping I find some cache folder, but that did not work out for me. I hope you will be able to convert the saves, or at least that somebody else will read this post and manage to implement my idea.

[z7ui]

I'll try to look into this later today.

thank you， really need this feature， starfield

[MoonlitWisp]

You're all absolute legends, you got this!

[Bcawesomer]

GPSaveConverter can be helpful but not in the way it supposed to function being how it does not work you can use it to find the name of each sting and change the time modified in order to find which one is the save. Thats what im here for too i want a new game plus save.

[miffril]

@MrN0ss those aren't the same files. It is one file that split into 10 parts. You can see it by blobID.

[berdmanus]

Thank you

[GaborKoleszar]

https://github.com/HarukaMa/starfield-xgp-import/releases/tag/v0.0.2

Check this project. Download the exe, copy the .SFS save file into the same directory as the exe, open CMD and type in .\sfsconvert.exe "nameofSFSfile"

Done, it is now in the Gamepass version of Starfield.

[berdmanus]

hello, tell me what to do with this code?

[EffortlessFury]

@berdmanus It's not entirely complete yet.

[SherbyHomes]

@miffril Would it not be possible just to paste that into the containers that are already there?

I was looking into it before but staring at hex for too long hurts my brain.

[SzzzAK999]

Please, someone make it happen. I like to play on XBOX Series X, but I did start game before lunch on pirate version. Now I stuck on PCMR.

[jibs92]

Zencq created a great save game editor that works both ways for No Man's Sky. https://github.com/zencq/NomNom
The saves in Steam and in Xbox are very similar to Starfield.

[miffril]

@SherbyHomes I don't know how names are generated. I guess they are just random numbers. Those names should be put inside index file. I'm trying to understand right how those indexes are working. If their only purpose is to list filenames, I think it's possible to just create a savefile from the game and then replace this XGP save files with renamed files generated using my script.
Quantity of files generated from big saves is the open question right now. I generated 115 files from my save as I mentioned above. In this case you can't just replace dummy save from XGP because it have something about 10 files.

[MrN0ss]

Not sure if useful to cross the data but in https://github.com/Fr33dan/GPSaveConverter we can check those 10 file like in this

up is xbox game pass
down is my "Steam" saves ;)

[MrN0ss]

starfield xgp extraction.txt
heres a txt file with the container names and blob id's from my saves

[MrN0ss]

it seems that it has 10 copies of the same save in each set, i do only have the start of the game up until right after the char creation like you can see here

[berdmanus]

I don't understand how to run it?

[MrN0ss]

@MrN0ss those aren't the same files. It is one file that split into 10 parts. You can see it by blobID.

yeah you are right thanks for the heads up but check this wiki for gps sems to have good info haven't checked fully
https://github.com/Fr33dan/GPSaveConverter/wiki/File-Translations

I don't understand how to run it?

you got to get it from release https://github.com/Fr33dan/GPSaveConverter/releases code is broken i think

[MoonlitWisp]

Has anyone figured Steam -> XGP yet?

[SzzzAK999]

I don't understand how to run it?

You need run this via Visual Studio or other app I guess. I did run it with VS.

I didn't figure out how to convert files from Steam to XGP.

[MrN0ss]

i did run it on vs but had missing files steamapi and the other one

i have a translation ready but get this error

[MrN0ss]

also check the wiki for how to run it https://github.com/Fr33dan/GPSaveConverter/wiki/File-Translations

[tosziro]

https://github.com/HarukaMa/starfield-xgp-import/releases/tag/v0.0.2

Check this project. Download the exe, copy the .SFS save file into the same directory as the exe, open CMD and type in .\sfsconvert.exe "nameofSFSfile"

Done, it is now in the Gamepass version of Starfield.

Thank you! Works for me

[SirShaw]

https://github.com/HarukaMa/starfield-xgp-import/releases/tag/v0.0.2

Check this project. Download the exe, copy the .SFS save file into the same directory as the exe, open CMD and type in .\sfsconvert.exe "nameofSFSfile"

Done, it is now in the Gamepass version of Starfield.

You are an angel. Works perfectly! Thank You!

[Z1ni]

https://github.com/HarukaMa/starfield-xgp-import

Locking this issue as there's now an import tool made by @HarukaMa.

I'm looking into maybe adding the conversion also to my script, but if you're converting Starfield saves from Steam to XGP, look into that project instead for now.