Factorio Forums

I meant to delete a blueprint, but deleted the blueprint book instead. Woe and sadness.

I have Steam sync enabled for Factorio (on Windows), and I'm hoping that some sequence of disabling Steam sync/hard-killing Factorio/hard-killing Steam/re-enabling Steam sync will bring my blueprint book back to me. Has anyone ever done this before? If so, please tell me how. I'm sure I could work it out for myself given enough time, but AFAICT I won't get more than one chance at this.

Thanks in advance!

Try loading a save where u might have it still in the player inventory

No, none of my saves have the blueprint book in the player inventory.

Well, I figured it out, kinda. The easy way to prevent anything from being uploaded to Steam sync is to disconnect the network before exiting the game, and then exit Steam right afterward. After that, I renamed my Factorio user data folder, then reconnected the network and ran Factorio again. Et voila, Steam sync re-downloaded everything as it was before!

Unfortunately, it seems that Factorio only uses Steam sync for saved games, not for the blueprint library, mods, or configuration, so the book is just gone. Hopefully my tale of woe will be helpful to someone else who accidentally a saved game.