I got a code, but I can't play this weekend. If you're really interested in playing this, here is the code:
"Please use this code to download Big Alpha and join the hunt now. Be sure to share your experience on http://evolvegame.tumblr.com/.
CODE for PlayStation 4:
3BC6-RBNR-HA67
Big Alpha begins Friday, October 31st at 9AM PDT and ends on all platforms Sunday, November 2nd at 8PM PST. "