r/pcgaming - Converting Persona 5 Royal PS4 saves to Steam
59 votes and 28 comments so far on Reddit
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Steps are outlined in the OP and on GitHub link.
Pretty wild someone figured this out. Another option besides a hacked ps4 is to get a "Save Wizard MAX" according to the OP but it costs $60.
Saw some people were asking about this and figured it warranted a new thread. But mods can lock it if they deem it non thread worthy