Minecraft has added biomes constantly since 2011 and dimensions almost never. The count has stood at three for fifteen years: Overworld, Nether, End. In 2027 it becomes four.
The new one is called the Sift, it is pink, and the creature Mojang chose to show is rabbit-like but walks instead of hopping. That is very nearly the entire reveal. PC Gamer reports it came at the end of Saturday's Minecraft Live as a brief clip of that rabbit walking through tufts of pink grass under a turquoise sky, with no further detail attached.
You can see it next week, in a different game
The unusual part of the rollout is the order. The Sift arrives in Minecraft on Bedrock and Java in 2027, but it also appears in Minecraft Dungeons 2, which releases next week.
So the first playable version of Minecraft's fourth dimension will be in the action RPG spin-off, roughly a year before the game it belongs to gets it. Mojang has said considerably more about the Dungeons 2 version than the Minecraft one, which inverts the usual relationship between a flagship and its offshoot.
According to Xbox Wire, the Dungeons 2 Sift has "shifting tides" that affect player characters, hazardous new block types, and new mobs both friendly and hostile. Two biomes are named. Singer's Meadow is verdant, with flora growing out of red sculk. Carapace is desert, scattered with strange blue walls and giant hollow fossils.
Mojang is explicit that this may not be what turns up in Minecraft. The studio is staying quiet on both how players will reach the Sift and how it will differ from what it calls Dungeons 2's "expression" of the place. That caveat is doing a lot of work: red sculk and shifting tides are mechanics that suit an ARPG and might not survive the trip to a survival sandbox.
Reading it as a marketing decision
Putting the dimension in the spin-off first is a clean way to make a sequel feel consequential. Minecraft Dungeons 2 is no longer just another Minecraft-branded game, it is the place you go to see what is coming.
Whether it needed the help is another question. The first Minecraft Dungeons did well enough on its own. Using a fifteen-year first as promotion for a game releasing next week is a strong play regardless, and it costs Mojang nothing it was not going to reveal anyway.
The risk is expectation management. Players who explore the Sift in an ARPG for a year will arrive at the Minecraft version with a specific idea of what it should be, and Mojang has already warned it will be different. Managing that gap is harder than never having set it.
The ice caves are the change most players will feel
Also announced, and more likely to affect ordinary play: a new ice caves biome, appearing sporadically beneath the colder surface biomes of the Overworld.
It comes with a mechanic worth noting because it inverts a habit every Minecraft player has. The ceilings are hung with icicles that detach when you place a torch underneath them. Fifteen years of muscle memory says that light is safety and you place it liberally while exploring. In ice caves, lighting the wrong spot drops the ceiling on you.
That is a better piece of design than a new dimension announcement, because it changes a decision players make hundreds of times per session rather than adding a place they visit. Making a familiar reflex dangerous in one specific context is how you get people to pay attention to where they are.
Content additions on this scale to a game this old are worth watching for what they say about maintaining an audience across a decade. Bungie is currently trying the opposite manoeuvre, restoring Destiny 2 content it had deleted in order to bring players back, while some of the most substantial additions to other long-lived games arrive from outside entirely, as with the two-year fan expansion that added a whole region to Baldur's Gate 3.