Sup Factorians, hope everyone is well today.

I put the game down roundabout last April, and while the anniversary itself is mere coincidence, I'm decided to get back into the game again today. During the intervening time, the SSD was replaced, so Windows 11 is a fresh install from a few weeks ago. Between Steam cloud saves, and some redundant personal archiving, I haven't lost any savefiles nor have I lost my previous blueprint-storage.dat.

I simply cannot access my blueprint library, now that I've installed Factorio v1.1.107-0.

The trouble is, the game was last saved on v1.1.76-0, on 20230410, which was a Monday, almost precisely a full year ago.

The earliest v1.xx I can seem to access on Steam is v1.1.87-0, and loading into that game version doesn't allow me to access my blueprint library either. Factorio.com has v1.1.76, but specifically the demo and not the full version. (About 85% of the blueprints I'm looking to recover are made with mods.)

I've tried this both with and without mods, on several different clean installs (properly uninstalled and AppData cleaned out between iterations -- so as to control variables.)

Before troubleshooting further, does anyone have any suggestions on how to snag a full-kit version of v1.1.76? (I intend to mirror this post on the forums right after submitting here.) NOT looking to pirate, I have a full key on Steam, I just cannot find the specific version I need to troubleshoot this issue.

Alternatively, is there something user editable in the blueprint-storage.dat file to allow v1.1.87( ) to properly import my shit?

Thanks in advance, folks.