GameStop offers Mortal Kombat XL for PlayStation 4 or Xbox One for $19.99. Opt for in-store pickup to dodge the $5.99 shipping charge. (You can also spend $24.99 or more and apply coupon code "SAVER" to receive free shipping.) That's $5 under our mention from a week ago (of just the PS4 version) and the lowest price we've seen for either platform. (It's also at least $4 less than the best deal we could find for a digital copy purchased elsewhere.)