CDKeys offers Steam downloads of the XCOM 2 Digital Deluxe Edition for Windows, Mac, and Linux for $36.95. That's the lowest price we could find by $4, although most stores charge $60 or more. It includes the Reinforcement Pack DLC and the digital soundtrack.

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.