Xbox Live Gold and Xbox Game Pass Ultimate members can play Fallout 76, Soulcalibur VI, and DayZ from Thursday, December 12 at 8 a.m. PST until Sunday, December 15 at 11:59 p.m. PST.

Let's take a look at what's on offer this week.

Fallout 76

Bethesda Game Studios, the creators of Skyrim and Fallout 4, welcome you to Fallout 76, the online prequel where every surviving human is a real person.During the event, you’ll have access to the full game: Adventure Mode and Nuclear Winter. Players will be able to experience all of the latest updates to the game, like the ability to vote on maps in Nuclear Winter; a new Holiday Scorched event that will reward players with special gifts; a special holiday-themed Nuclear Winter challenge; and the free Santatron bot, available in the Atomic Shop.

Soul Calibur VI

Bring more than your fists to the fight! SOULCALIBUR VI represents the latest entry in the premier weapons-based, head-to-head fighting series. The heroic 3D battles transpire in a beautiful and fluid world, with eye-popping graphics and visual appeal. Featuring all-new battle mechanics and characters, SOULCALIBUR VI marks a new era of the historic franchise. Welcome back to the stage of history!

DayZ

The post-soviet country of Chernarus is struck by an unknown virus, turning the majority population into frenzied infected. Fighting over resources has bred a hostile mentality among survivors, driving what’s left of humanity to collapse. You are one of the few immune to the virus - how far will you go to survive?

You can find and install the games here on Xbox.com.

If you enjoyed one of the games and want to play it further, you can purchase the games and other editions at a discount and continue playing while keeping your Gamerscore and achievements earned in-game during the event! Please note that discount percentage can vary by region.

• Fallout 76
  • Standard Edition ($39.99 SRP) at 50% off: $20.00
  • Tricentennial Edition ($59.99 SRP) at 50% off: $30.00
• Soulcalibur VI
  • Standard Edition ($59.99 SRP) at 65% off: $21.00
  • Deluxe Edition ($89.99 SRP) at 65% off: $31.50
  • Season Pass ($29.99 SRP) at 50% off: $15.00
• DayZ
  • Standard Edition ($49.99 SRP) at 40% off: $29.99

Don’t miss out on another Free Play Days! Learn more about Free Play Days here, download the free Xbox app for android and stay tuned to @XONEHQ on Twitter, YouTube and Facebook, to keep up with future Free Play Days info, releases dates and more.