Minecraft Ice Caves Preview: Frostbite, Freezing Effect and the Winter Drop Explained

Minecraft's next update just became something you can actually load up and try. On September 30, Mojang released Bedrock Preview 26.60.29, the first build that lets players test the Ice Caves biome and its new Frostbite zombie variant — both shown off days earlier at Minecraft Live. Here's everything confirmed so far about how the biome, its blocks, and its new mob actually work.

The Ice Caves are the headline addition of what Mojang is internally labeling Drop 4 of 2026, the winter-themed follow-up to the Dappled Forest and Abandoned Camps added in the Wilderness Bound update. None of it is finished — Mojang has already flagged one known visual bug — but the patch notes lay out exactly what's being tested and how to try it.

1. What Is the Ice Caves Preview, and How Do I Try It?

Preview 26.60.29 ships the Ice Caves content behind an experimental toggle called Drop 4 of 2026, found in the Experimental Features menu when creating or editing a world. Mojang says the same features are already live on Java Edition as a snapshot, with the Bedrock beta and preview builds following behind. Players who turn the toggle on can generate new worlds (or use a world that already has the experiment enabled) to find Ice Caves underground.

Mojang is actively asking for feedback on the new systems through its official form at aka.ms/mc-gamedrop_winter26, and bugs can be reported at bugs.mojang.com. Because this is experimental, expect numbers and behaviors to change before the drop's full release — Mojang's own notes already list the Ice Crystal block as "currently smaller than intended."

2. Inside the Ice Caves: A New Biome Beneath the Snow

Ice Caves are a new cave biome that generates underground, specifically beneath the Overworld's colder biomes. According to the preview changelog, the biome is built mainly from Packed Ice and Calcite, with terrain composed primarily of those two blocks. Dirt and Granite don't generate here, and — notably — Glow Lichen doesn't either, which matters for how the space is lit (more on that below).

Patches of snow occasionally appear on the ground, and ores still generate in pockets of Stone and Deepslate as normal. On the mob side, Ice Caves support the usual cave spawns plus two new or returning faces: Strays and the brand-new Frostbite, covered in detail further down.

3. Ice Crystals and Icicles: Beautiful, but Dangerous

Because Glow Lichen can't grow in Ice Caves, the biome's only natural light source is a new block: the Ice Crystal. Described in the patch notes as similar to Amethyst Clusters, Ice Crystals generate naturally on top of Packed Ice, emit light, can be placed facing any direction, and break if their support block is removed. Mojang's known-issues list flags that the crystals currently render smaller than intended, so expect their size to change before launch.

Icicles are the biome's environmental hazard. They generate hanging from the ceiling under blocks of Packed Ice and can grow up to five blocks long when pointing downward — but only in areas without nearby light sources, and never in the Nether. Raise the light level nearby (say, with a torch) and there's a chance an icicle will break off and fall, dealing damage — extra damage, in fact, to anything it lands on. Icicles also shatter if they're exposed to a nearby light source, so a careless torch placement can clear out a cave ceiling's defenses as easily as it can bring one down on your head.

4. Meet the Frostbite: Minecraft's New Zombie Variant

The preview introduces the Frostbite, a new Zombie variant built specifically for cold and icy biomes. Unlike a standard Zombie, it switches between melee and ranged combat depending on how far away its target is and whether it's currently holding an Ice Ball: melee attacks apply the new Freezing effect, while ranged attacks throw Ice Balls at the player. Mojang's notes confirm it has dedicated throwing animations for both adult and baby variants, separate from its Zombie-style melee animations.

A few other confirmed details: a Frostbite drops Rotten Flesh and Ice Balls on death, can stand on Powder Snow without sinking, and is immune to freezing itself — it won't be slowed by the Freezing effect or by Powder Snow. There's also a neat environmental interaction baked in: regular Zombies and Husks now transform into Frostbites if they spend enough time standing in Powder Snow, while a Frostbite that stays underwater long enough reverts into a regular Zombie.

Its signature weapon, the Ice Ball, is a new thrown projectile that deals four points of damage to whatever it hits, with the damage scaling down based on how fast it was thrown. It breaks on impact with blocks or entities, triggering its own particle effect and sound.

5. The Freezing Effect, Potion of Freezing and Arrow of Freezing

Getting hit enough by a Frostbite — or anything else that applies it — inflicts the new Freezing status effect. According to the patch notes, Freezing makes a player visibly shake, reduces jump height, and will eventually start dealing damage the longer it's active, functioning much like standing in Powdered Snow for an extended period. Leather Armor, which normally keeps a player from fully freezing in Powder Snow, works the same way here: it stops you from freezing solid, but it won't stop the Freezing effect from being applied or remove it once it's active.

Freezing hits mobs harder than it hits players. Any mob affected by it takes additional damage while the effect is active, and mobs that are specifically vulnerable to freezing take a 5x damage multiplier on top of that — a detail that suggests some upcoming mobs may be built around being especially weak to cold damage.

On the crafting side, Ice Balls (dropped by Frostbites) can be brewed into a Lingering Potion of Freezing or a Splash Potion of Freezing. From there, dipping regular Arrows into a cauldron filled with Potion of Freezing produces Arrows of Freezing — giving players a ranged way to apply the same effect the Frostbite uses against them.

6. How This Fits Into Minecraft's 2026 Game Drops

Mojang moved away from a single yearly update years ago in favor of smaller "Game Drops" released several times a year, and the Ice Caves slot in as the fourth drop of 2026. The third drop, Wilderness Bound, added the Dappled Forest biome, Abandoned Camps, Poplar Wood, Cushions, Straw Beds, and a set of new Concrete Stairs and Slabs — all of which finished rolling out to Java snapshots and Bedrock beta over the summer.

The Ice Caves were first shown publicly at Minecraft Live on September 26, alongside several bigger reveals — including The Sift, Minecraft's first new dimension in over a decade. You can read a full rundown of everything Mojang announced at Minecraft Live for the wider context this preview build fits into.

7. Other Big Minecraft News This Week

The Ice Caves preview isn't the only major thing happening in the Minecraft universe right now. Minecraft Dungeons II, the dungeon-crawling spin-off revealed earlier this year, launched on September 29 across PC, Xbox, PlayStation 5, and Nintendo Switch 2. It's a separate game from the Ice Caves work covered here, built by a different internal team, but if you're curious how it landed with critics, our breakdown of how critics received Minecraft Dungeons II rounds up launch-day scores.

Separately, Mojang has already confirmed that Minecraft is coming to Nintendo Switch 2 natively on October 27, with Vibrant Visuals enabled by default for enhanced lighting and shadows, plus a digital upgrade path for existing Switch owners (pricing details still to be announced). That release doesn't include the Ice Caves preview content yet, since it's still experimental, but it's worth keeping on your radar if you're playing on Nintendo hardware.

8. Quick Tips and Official Resources

• Enable the "Drop 4 of 2026" experimental toggle when creating a world to generate Ice Caves.
• Don't light up an entire Ice Cave ceiling at once — raising the light level near Icicles can bring them crashing down on you.
• Ice Crystals are your only natural light source down there, since Glow Lichen doesn't generate in this biome.
• Keep Leather Armor on hand; it won't block the Freezing effect, but it does stop you from freezing solid the way Powder Snow would.
• Frostbites switch to ranged Ice Ball attacks at a distance, so closing the gap quickly can cut down on chip damage before a melee fight.
• Save any Ice Balls you pick up — they're the only way to brew a Potion of Freezing, which can then be turned into Arrows of Freezing.

Official Resources:

• Minecraft Preview 26.60.29 patch notes — minecraft.net
• Minecraft for Nintendo Switch 2 release date — minecraft.net
• Mojang Bug Tracker — report issues found in the preview

For more on what else is coming to the game this year, browse the full walkthroughs and guides archive.