I've bought quite a few Steam-redeemable bundles lately, so I've been installing a heap of games on Steam. I suddenly noticed that on my Steam library "The Binding of Isaac" was marked as uninstalled, which I knew for a fact to be wrong.

After taking care to preserve my save files, I went ahead and told Steam to install the game, which apparently jogged its memory (but only after "preparing" the game's files for installation).

So while there appears to be no harm done, I've never had this happen before, and so I wonder if this is some sort of ominous sign.

  • I would worry. Commented Dec 17, 2011 at 18:34
  • @MatthewRead That definitely sounds unpleasant. Hopefully, since I don't do as much Steam juggling as you, I won't be facing such dire outcomes in the near future. I feel your pain, though.
    – Aubergine
    Commented Dec 17, 2011 at 19:01
  • 1
    Yeah, hopefully not. Probably it got messed up by being part of multiple bundles or something. I had some issues with the Indie Royale where they gave me multiple keys for the same game pack, so I wouldn't be surprised if something similar happened here. Commented Dec 17, 2011 at 20:05

1 Answer 1


I imagine that the library cache file became broken you could probably rebuild it to get it to remember but steam should check the location before installing and see what is there and since your games will be all installed then it should not hurt anything. the real issue is why is the library file/s getting corrupted?

But in all you should be fine and there is nothing to worry about. It has happened on a few of my games before and all has been well.

  • Are you referring to the blob file?
    – Aubergine
    Commented Dec 22, 2011 at 4:36
  • As you said, this was quite a while ago and nothing bad has happened since, so I guess this really was nothing to worry about.
    – Aubergine
    Commented Jul 20, 2012 at 10:07

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