Obduction killed my PSU!
No, believe it or not, that's actually a good thing.
Back in April, my 540w PSU died (not surprising considering I recently installed a GTX 970). The repair shop replaced it with an Azza Dynamo 850w (DO NOT BUY). From day one, my computer started spontaneously shutting off during certain games. Namely Street Fighter V and Starcraft 2. Problem was, I could never recreate the problem reliably. Then Obduction was released. This game shut my PC off consistently in less than 20 minutes. I took it to the repair shop and Hallelujah! It shut off with Obduction playing. I can finally get this PSU replaced with one that doesn't suck, for free.
I've never been so happy to see my computer die.