Penumbra Black Plague causing blue screen

[Contrarium]

I bought the Penumbra series on Steam a while ago, and finished Overture just fine, but when I try to play Black Plague it crashes. This always happens when I'm on one of the loading screens, sometimes just the game crashes and other times it causes my entire computer to blue screen. I went on Steam and looked and it said that it had no disk usage, where as the other games do take up space so I think that's part of the problem. I tried uninstalling it and reinstalling, and it said it was installing but nothing happened and it didn't show up like it was installing. I tried verifying the integrity of the game cache, but that didn't fix anything. The thing is I could at first play it even though it crashed time to time, but after my computer blue screened I can't even start it up. I can play the other two Penumbra games just fine so it's not my graphics card that is the problem.

Any help would be appreciated... I figure I could always buy another copy since it's just 5$ right now and I think I can buy it without using Steam so that might solve the problem... but I really would rather not buy the same thing twice if I don't have to.