Minecraft Chaos Cubed (26.2): Sulfur Caves, Cubes & More

What Is Chaos Cubed in Minecraft?

Chaos Cubed is the Minecraft 26.2 summer update, released on June 16, 2026 for both Java Edition and Bedrock Edition. It introduces a brand-new underground biome called the Sulfur Caves, a wildly unpredictable physics-driven mob known as the Sulfur Cube, fresh sulfur and cinnabar building blocks, erupting geysers, a Java Friends List, and experimental Vulkan rendering.

The update is completely free for anyone who already owns Minecraft. There is nothing to buy and no add-on to purchase. You simply update the game on your platform of choice and dive in. And if you want to explore the chaos with friends, the smoothest way to do it is on your own dedicated server, where you control performance, players, and even the new sulfur cube physics through datapacks.

Below is a full breakdown of everything in Chaos Cubed, plus a quick FAQ to answer the most common questions.

Sulfur Caves: A New Underground Biome

The Sulfur Caves are the centerpiece of the update. This biome generates mostly deep underground in the Overworld, and only very rarely breaks through to the surface.

Inside, you will find:

• Bands of sulfur and cinnabar running through the cave walls
• Sulfur Pools filled with Potent Sulfur
• Sulfur Spikes, sharp stalactites and stalagmites that hurt if one falls on you
• Sulfur Cubes bouncing around, alongside Cave Spiders

Above the biome, you can also stumble onto a Sulfur Spring, a surface feature made of sulfur, potent sulfur, and magma blocks. It comes in four sizes: Small, Medium, Large, and Extra Large. Think of these springs as a signpost telling you that a Sulfur Caves biome is waiting somewhere below.

The Sulfur Cube: Minecraft's Most Physics-Driven Mob

At first glance, the Sulfur Cube looks like a cute, harmless passive mob that hops around minding its own business. Underneath that simple display is one of the deepest mobs ever added to Minecraft.

How Block Absorption Works

When you interact with a Sulfur Cube while holding a block, it absorbs that block and its AI switches off. It becomes a physical object you can punch, push, and knock around like a ball. While holding a block, the cube:

• Takes no fall damage
• Takes no player damage
• Adopts a movement "archetype" based on the absorbed block

Use Shears on it to eject the block and re-enable its AI.

Archetypes Change Everything

The block you feed it decides how it behaves when hit. A few highlights:

• Wool turns it into a light, bouncy beach ball
• Ice makes it slide like a hockey puck
• Wood makes it fast and bouncy
• Metal makes it slow and flat
• Honeycomb makes it sticky with no bounce
• Magma blocks make it "hot," damaging anything it touches
• TNT turns it explosive (keep it far from fire!)

Raising and Moving Sulfur Cubes

• Killing one splits it into two smaller cubes
• Small cubes can be fed Slime Balls to grow into large ones
• A large cube can be scooped up with an empty Bucket
• They cannot enter Boats, but they can ride Minecarts
• Dispensers can insert, swap, or shear out blocks automatically

For server owners, the best part is that archetypes are fully data-driven through the new datapack registry, so you can design custom sulfur cube behaviors for your community.

Sulfur and Cinnabar Building Blocks

Chaos Cubed adds two complete stone block families for builders. Both Sulfur (yellow) and Cinnabar (red) come with:

• Polished variants
• Brick variants
• Slabs, Stairs, and Walls for each
• Chiseled Sulfur and Chiseled Cinnabar decorative blocks

You also get Sulfur Spikes, which act like dripstone. They form stalactites on ceilings and stalagmites on floors, can be merged into longer columns, and four spikes craft back into a single Sulfur block. These new palettes give serious builders a fresh warm-toned set to work with.

Geysers, Potent Sulfur, and Toxic Springs

Potent Sulfur is a reactive block that drives most of the update's environmental drama. Placed under 1 to 4 water source blocks, it releases a nausea-inducing gas cloud that spreads across the water surface up to a radius of 3 blocks.

Place it above Magma or Lava with water on top, and it forms a geyser:

• Magma-powered geysers erupt at random intervals, launching players, mobs, and items upward
• Lava-powered geysers erupt continuously with quieter sounds
• Eruptions emit game events that Sculk Sensors can detect

Geysers can appear on any surface biome across the Overworld, and like azalea trees pointing to lush caves, a surface geyser hints that a Sulfur Caves biome is below. Potent Sulfur is crafted from 9 Sulfur blocks.

The Java Friends List and Multiplayer

Java Edition players get a long-requested feature: a built-in Friends List. A new button on the Title Screen and Pause Menu (default key: "O") opens an overlay where you can:

• Add friends by Profile Name
• See presence such as Online, Online (Realm), Online (Server), or Offline
• Accept, decline, or cancel friend requests
• Control your visibility and privacy in Online Options

Chaos Cubed is fully multiplayer across every compatible platform. Whether you play solo, on a LAN, on Realms, or on a dedicated server, all the new features are available. The Sulfur Cube's ball-physics shine brightest with other people around, which is exactly why so many players are setting up servers to play it together.

Technical Upgrades: Experimental Vulkan Rendering

Under the hood, Chaos Cubed begins Minecraft's move from OpenGL to Vulkan. A new "Graphics API" option in Video Settings lets you choose Default, Prefer Vulkan (Experimental), or Prefer OpenGL.

• Vulkan is experimental and may not be stable on every system
• OpenGL remains the fallback for older hardware and drivers
• Vulkan prefers your dedicated GPU over integrated graphics

The update also bumps the Data Pack version to 107.1 and the Resource Pack version to 88.0, which matters if you run custom content on a server.

How to Play Chaos Cubed on Your Own Server

The single-player experience is fun, but Chaos Cubed was clearly built for groups: bouncing sulfur cubes between friends, building geyser parks, kicking a wool cube around like a football. The best way to enjoy all of that with zero lag and full control is to rent your own Minecraft server.

With your own dedicated server you get:

• Smooth performance for geyser particles and heavy sulfur cube physics, even with many players
• Always-on access so friends can join anytime without you hosting from your PC
• Full datapack support to create custom Sulfur Cube archetypes and game rules
• New spam-control server properties and the updated management protocol for clean administration
• Easy world backups, because new releases can corrupt old worlds

Ready to bounce? Spin up a Minecraft server today, invite your crew, and explore the Sulfur Caves together. Setup takes minutes, and you will be hitting explosive sulfur cubes around a geyser before you know it.

Order your Chaos Cubed server now and start playing the 26.2 update with friends.

Chaos Cubed FAQ
 

What is Chaos Cubed in Minecraft?

Chaos Cubed is Minecraft's summer update. It adds Sulfur Caves, a sulfur cube mob, sulfur and cinnabar blocks, geysers, and new physics-inspired gameplay mechanics.

What new gameplay features are in the Chaos Cubed update?

The update brings the Sulfur Cube mob, the Sulfur Caves biome, new blocks like cinnabar and sulfur, the "Bounce" music disc, the Java Friends List, experimental Vulkan rendering, and much more.

Is the Chaos Cubed update multiplayer?

Yes. Chaos Cubed supports multiplayer on every compatible Minecraft platform.

What does the Sulfur Cube do?

The Sulfur Cube changes its movement and behavior based on the block you give it. It can absorb blocks like TNT, but keep it well away from anything flammable.

What are the Sulfur Caves?

The Sulfur Caves are a new underground biome where you can find sulfur pools, cinnabar blocks, sulfur spikes, and sulfur cubes.

Are sulfur and cinnabar blocks useful in gameplay?

Yes. Players can use them creatively in builds, and potent sulfur can create bubbling pools and geysers.

Is Chaos Cubed available on both Java and Bedrock?

Yes, Chaos Cubed is available on both editions. You can also try features early through the Minecraft Preview program or Java Edition snapshots.

Do I need to buy anything to access Chaos Cubed?

No. The Chaos Cubed update is free for your current version of Minecraft.

What Bedrock bonus content is included?

Chaos Cubed also adds Groups for Minecraft: Bedrock Edition. Players on Xbox, PlayStation, and Windows can form a group, use text chat, and travel together across worlds and servers.

How do I download or access the Chaos Cubed update?

Simply update Minecraft on your preferred platform.

Can I use Chaos Cubed features in Realms?

Yes. The update's features are available in single-player, local multiplayer, on servers, and in Realms.

Is Chaos Cubed available on console, mobile, and PC?

Yes. Chaos Cubed is available on all current versions of Minecraft.