Hello!
To start, I will just put out my specs e.t.c.
Windows 8.1 (up to date)
AMD FX-8350
GTX 680s SLI (2 graphics cards)
8GB Corsair Vengeance RAM (1600)
Many Hard Drives (Amnesia is in a 1TB fresh hard drive)
Programs currently running:
ESL Wire
Origin (with in-game overlay enabled)
Steam (with in-game overlay enabled)
Battle.net launcher
Open Broadcaster (streaming software, attached to the game)
I will try to do some testing by disabling origin and OBS to see if it still crashes. I don't think its OBS as my friend Samteddeh is running OBS fine without a single crash in decades.
What happens:
It seems initially the game runs beautifully, but then as time passes the performance degrades to sad levels (framerate spikes, mini-lockups and crashes). I've adapted the approach of saving and quitting and re-entering; the game has crashed twice during a save now (thankfully no corruption).
For now I will leave you with this:
http://i.imgur.com/zP5WXs2.png