When will Steam keys be going out for people who purchased FirstAccess?

There will be an email going out shortly regarding that and we do our best to deliver the keys to those who have pre-ordered within 24 hours of their submission.

I have yet to receive mine, or at least can't seem to find mine. I purchased first access the day it came out.

If you purchased during First Access you will need to log a support ticket to request the steam key. It did not happen automatically.