CDKeys offers Steam downloads of Prey for Windows bundled with the Cosmonaut Shotgun Pack DLC for $16.39. That's a buck under last week's mention and the lowest price we've seen. (It's now $14 under the best price for the base game alone.) It's this editor's Game of the Year, and I'm not alone. Note: New customers can provide an email address on the CDKeys Facebook page to get a unique coupon code that cuts an extra 5% off. Still undecided?