Every December, something strange happens to video games. Snow starts falling where it normally never snows. Warriors suddenly wear Santa hats. Racing tracks acquire candy canes. Even characters whose daily routine involves explosions, monsters or dangerous driving somehow find time to decorate a Christmas tree.
Developers could create completely new festive games. Mostly, they don’t. Instead, they take worlds players already know and temporarily dress them for Christmas. There is a fairly simple reason: familiarity is extremely valuable in gaming.
Nintendo has done it with Mario. In Mario Kart Tour, its 2021 Holiday Tour transformed parts of the Mushroom Kingdom into winter attractions. Merry Mountain returned, while Mario and Bowser appeared dressed as Santa. Yoshi became a reindeer. Daisy got her own festive outfit. The underlying game remained recognisably Mario Kart Tour. Christmas changed the atmosphere, not the identity of the product.
That distinction matters. A completely new Christmas game has to introduce its characters, rules and world before players can become attached to it. A seasonal version skips that awkward first date. Players already know Mario. They know Fortnite. They know how an Overwatch match works. Put some snow on the map and suddenly something familiar feels slightly new again.
There is also a very practical production reason. Building a game from scratch means creating mechanics, environments, interfaces, characters, animations and then testing the whole thing. A Christmas event can reuse much of what already works. Developers can concentrate their effort on decorations, rewards, costumes or temporary modes. It is a clever compromise: enough novelty for players to notice, without asking a studio to reinvent its game every December.
This approach has become particularly useful as games have evolved from products people finish into services people may play for years. Seasonal content gives developers an excuse to refresh the experience without rebuilding everything. Live-service developers now plan calendars around temporary events, rewards and promotions, often connected to holidays. Limited content interrupts routine and gives players a reason to return.
Fortnite is perhaps the giant snow-covered example. Its Winterfest has become a recurring event rather than a separate Christmas game. Winterfest 2025 ran from December 18 to January 5 and offered daily presents, festive outfits, Blizzard Grenades and Snowball Launchers. The island did not need replacing. It simply became the Christmas version of itself for a few weeks.
Online slots use surprisingly similar logic. Sweet Bonanza Xmas appeared in 2019 as a festive transformation of Pragmatic Play’s Sweet Bonanza, which had launched earlier that year. Instead of throwing away the colourful candy world that players already recognised, the developer froze it. Familiar sweets received an icy Christmas look while the tumble system, free spins and multipliers remained central to the experience. Pragmatic Play itself presented the game as a festive take on the popular original. It is almost a textbook example of the strategy: keep the successful skeleton, change the seasonal wardrobe.
And there is another advantage. Christmas provides designers with an enormous visual toolbox that requires almost no explanation. Snow means winter. Red and green mean Christmas. Add presents, lights, gingerbread, bells and an unreasonable quantity of fake snow, and the player understands the theme in seconds.
The calendar itself also does some of the marketing work. Developers do not have to convince people that December is a good moment for Christmas content. Players are already surrounded by Christmas films, music, decorations and advertising. A festive update simply connects an existing game to that wider cultural moment. Recent industry guidance around live-service games even recommends planning holiday events because they can encourage players to return season after season. Christmas becomes less a new product and more a recurring appointment.
Overwatch shows how far this can go without losing the original game. Its Winter Wonderland has repeatedly brought back snowball battles and winter-themed modes. Familiar environments and characters have been repackaged around festive challenges, winter cosmetics and returning activities such as Mei’s Snowball Offensive. The joke works partly because the normal game is still underneath all that snow.
There is also a psychological pleasure here that has little to do with novelty. Seeing a familiar fictional place celebrate the same season as the player makes that world feel strangely alive. We decorate our homes; the Mushroom Kingdom decorates too. We get Christmas jumpers; game characters get Christmas skins.
Perhaps that is the real trick. Christmas makeovers offer change without demanding that players abandon what they already enjoy. They make an old map surprising again. They turn familiar characters into seasonal jokes. And because the transformation is temporary, it never really has time to become ordinary.
That may explain why festive makeovers work so well. Players do not necessarily want Christmas to replace their favourite game. They want Christmas to visit it.
And when January arrives? The snow melts, Santa Mario goes back into the wardrobe and everything returns to normal. Until next December, of course.
