Five free loot boxes are listed in the event details Blizzard shared back when the event started, but according to an in-game pop-up which appears when players log in, the loot boxes appear to be "thank you" from Blizzard. 1
– Ammy Star (CorgiBeans) (@AmmyStarForgi) December 24, 2018
Overwatch JUST gave me 5 winter loot boxes for Christmas. Sure, 4 of them were all duplicate items, BUT this one was a very good box. pic.twitter.com/M9Payl3J79
– Steven Shaggy Shan (@Shaggyshan) December 24, 2018
moment to thank you for being a part of it, ”the in-game message said. “We could not have done this with the tremendous support, passion, and enthusiasm that you have shown for Overwatch . From the entire Blizzard team, we wish you and yours the best and look forward to spending an exciting new year with you! ”
End date or time was given for the promotion, so it's unknown how long players have to log into the game and collect their free loot boxes. The Winter Wonderland event is scheduled to end on January 2nd though, so logging in before then until more information is known would be a safe bet to make sure the loot boxes are acquired.
sold by Blizzard, Overwatch's Winter Loot Boxes will grant players all kinds of new cosmetics if they are lucky enough to score the items from the randomized lottery rewards. Winter Loot Boxes filled with new skins, emotions, highlights, player icons, sprays, voice lines, and more, ”Blizzard said about the loot boxes. “You can also purchase items from last year's event with credits at a discount. But don't wait too long – these Loot Boxes will disappear faster than holiday desserts. ” Overwatch’s Winter Wonderland event is now live until January 2nd with the full event details found here.