Bedrock Edition 1.18.0

1.18.0, the second release of Caves & Cliffs, is an upcoming major update to set to release in late 2021. It was first announced alongside the release of the Java Edition 1.17 snapshot 21w15a when Mojang stated the Caves & Cliffs update would be split in two. Features from 1.18.0 are being developed alongside 1.17.0 through experimental gameplay. The development versions of 1.16.220 and 1.17.0 contain some of the 1.18.0 features, also through experimental gameplay; however, they are not included in the full release of those versions until 1.17.10.

Blocks

 * Sculk Block.png
 * Generates in the mysterious new cave biome where the Warden lives, called the Deep Dark.
 * Has an animated texture.
 * May be used in redstone.


 * Sculk Something.png


 * Generates in the Deep Dark cave biome.
 * Made of sculk and a bone-like material.
 * Has the ability to 'bloom' as revealed by internal textures.
 * May be used in redstone.
 * May have something to do with axolotls.
 * Glows, but does not emit light, similar to the glow squid or the glow item frame.


 * Sculk Veins.png


 * Generates in the Deep Dark cave biome.
 * Generates in a layer on top of blocks, similar to snow.
 * Can be placed in all directions, like glow lichen.
 * Has an animated texture.
 * Some have parts that are transparent, allowing the player to see the block it is on top of.
 * May be used in redstone as seen in this video when they talk about the sculk sensor.


 * Sculk shrieker.png


 * Generates in the deep dark biome.
 * Perhaps made of sculk and a bone-like material.
 * Has 2 soul-shaped patterns in the center.
 * Has the ability to 'shriek' as revealed by internal textures.


 * Unidentified Sculk Block.png


 * Generates in the Deep Dark biome.
 * Has a different top texture than the Sculk Block and Sculk Catalyst.
 * Change their texture when the player steps on it.
 * May be an earlier version of the Sculk Shrieker.

Items

 * Bundle


 * Crafted with 2 string and 6 rabbit hide.
 * Used to store other items (except shulker boxes) inside of it.
 * Can hold only one stack of items, but is able to hold different types of items inside of it.
 * Items with smaller stacks, such as ender pearls, take up more room in a bundle, and non-stackable items take up the whole bundle.
 * The bundle's contents can be opened by pressing while holding it, throwing out its entire content into the world. When destroyed as an entity, it drops the items it currently has as well.
 * Right-clicking a bundle in the inventory empties one item from the bundle.
 * Even though bundles are not stackable, bundles can be nested.
 * Can hold up to 16 bundles.
 * Only empty bundles can be placed in other bundles without using commands.
 * Has a GUI when hovering over it.
 * Shows contained items in its GUI's inventory slots when hovering over it, as well as fullness as a number.
 * Note: Bundles can hold any amount of any item if added using commands.




 * Warden Spawn Egg.png Warden spawn egg.

Mobs





 * Spawns in the new deep dark cave biome.
 * The first fully blind mob (bats, despite relying almost exclusively on echolocation, still have basic eyesight).
 * When sensing movement, it moves toward the source of the movement.
 * It follows and attacks players, mobs, and other entities that make vibrations.
 * It does not attack other Wardens.
 * When attacked, it path finds toward the player.
 * Seems to follow the same rules as the sculk sensor when detecting noise.
 * When it detects a vibration, the growths on its head rattle and light up, similar to the sculk sensor.
 * If any projectile (e.g. egg, snowball, arrow) lands near the Warden, the mob inspects the location where the projectile landed, due to the projectile creating movement and noise. This feature can be used in order to cause a distraction.
 * Does not detect players that are sneaking.
 * Can detect players that are invisible.
 * When aggravated for long enough, the warden follows the player continuously, regardless of any other distractions.
 * Incredibly strong, doing damage, bringing players wearing full netherite or diamond armor from full health to  health points.
 * A mob designed to be extremely difficult and fled from.
 * Has a way to counter the strategy of building up 3 blocks to avoid attacks.
 * At least as fast as the player's walking speed.
 * Seems to have knockback resistance.
 * The warden's chest has a glowing core that appears to brighten and dim in tandem with the ambient lighting of the deep dark cave biome.
 * The core creates a low throbbing sound as it pulses. The sound and animation seem to speed up rapidly when the warden notices a player.
 * Is about 3.5 blocks tall, making it one of the tallest mobs in the game, exceeding the iron golem and enderman in height and width (the same).

World generation

 * Mountains


 * Height dependent generation.
 * Revamped, featuring some new small spruce trees on the slopes and ice and packed ice above the peaks.
 * Contain goats, rabbits, snow blocks, snow layers and powder snow.
 * Iron ore, emerald ore and coal ore are found in abundance.
 * Emerald ore no longer generates in blobs of only one.
 * Can generate up to Y=256.
 * New sub biomes.


 * Caves


 * Completely overhauled.
 * The cavern now generates in 2 layers of different stone bases depending on the depth.
 * Cavern layer above Y = 0 is made up of regular stone.
 * Stone transitions to deepslate from Y=0 to Y=-7.
 * Deepslate now completely replaces stone from Y=-8 to bedrock.
 * Certain types of ores and structures still generate in the deepslate layer, as well as tuff.
 * Dirt, diorite, granite and andesite do not generate in this layer.
 * Biomes inside of caves introduced such as dripstone caves.
 * Contain aquifers, bodies of water with different heights, independent of sea level (Y=63).
 * Aquifers below Y=0 sometimes generate with lava instead of water.
 * Improved old caves to blend in with the new generations of caves better.
 * New noise caves, coming in 3 forms, cheese, spaghetti and noodle.
 * The original caves still exist, mixing with the noise caves.
 * Cheese caves have large stone towers stretching from the bottom of the cave to the top.
 * Very large, often large enough to fly with an elytra.
 * Abundant with aquifers and ores.
 * Spaghetti caves are long, thin caves that have small aquifers and are more similar to original caves.
 * Noodle caves are thinner, squigglier and more claustrophobic variants of spaghetti caves.


 * Ore veins


 * Large, rare, snake-like ore formations.
 * Copper ore veins mixed with granite generate above Y=0.
 * Iron ore veins mixed with tuff generate below Y=0.

Biomes

 * Deep Dark biome


 * New biome at the "deepest depths of the world".
 * Only Wardens can spawn here.
 * Contains sculk blocks and sculk sensors.
 * Contains deepslate.
 * Likely generates exclusively within the deepslate layer between Y=-1 and Y=-64.
 * May contain candles.
 * Contains chests.


 * Dripstone Caves




 * Contains pointed dripstone (both stalactites and stalagmites) and dripstone blocks.
 * Dripstone clusters are abundant here, often forming pillars.


 * Lush Caves




 * Contain moss, moss carpet, spore blossom, glow berry vines, big dripleaf and small dripleaf.
 * Moss covers the ceilings and floors.
 * Axolotls can spawn here.
 * Clay pools generate inside.


 * Mountains


 * Come in 6 sub-biomes:
 * Mountain Meadow
 * The lowest layer of a mountain.
 * Contain flowers and sweet berry bushes.
 * Mountain Grove
 * The second lowest layer of a mountain.
 * Covered in snow, snow blocks and powder snow, and is filled with spruce trees.
 * Rabbits spawn in this biome.
 * Snowy Slopes
 * The second highest layer of a mountain.
 * Covered in snow, snow blocks, powder snow and ice.
 * Goats spawn only in this biome.
 * Lofty Peaks
 * The highest layer of a mountain, generating only if the mountain is high enough.
 * Generates if the surrounding biomes are too warm for snow capped peaks.
 * Covered in snow and ice.
 * Snow Capped Peaks
 * The highest layer of a mountain, generating only if the mountain is high enough.
 * Generates if the surrounding biomes are too cold for lofty peaks.
 * Covered in snow, snow blocks, powder snow, ice and packed ice.
 * Stony Peaks
 * The highest layer of a mountain, generating only if the mountain is tall enough.
 * Generates when surrounding biomes are to warm for lofty peaks
 * Made entirely out of stone and gravel

Gameplay



 * While in the deep dark cave biome, the ambient lighting occasionally dims temporarily, limiting the player's visibility. This serves as a warning that the warden is nearby.

General

 * Height limit extends from Y=-64 up to Y=320, available outside experimental gameplay toggle.

World generation

 * More extreme and smooth terrain.
 * Likely change to the generation of alternate stone types, to make them appear in larger but less numerous deposits.
 * Possibly seen in a screenshot tweeted by Henrik Kniberg, in which diorite appears to generate in a long and flat horizontal strip, rather than a small unevenly shaped patch.
 * Ore generation has further rebalancing to add strategy to mining.
 * This is also largely through the addition of ore veins, which influence surrounding stone.




 * Fossils
 * The fossils in the deepest part of the underground generate with Deepslate Diamond Ore instead of Coal Ore.


 * Strongholds
 * Try to generate fully encased in stone, or deepslate at low y-levels.

Blocks

 * Sculk Sensor
 * Now generates in the mysterious new cave biome, referred to as the "deep dark"
 * Available outside experimental gameplay toggle.

Items

 * Goat Horn
 * Available outside experimental gameplay toggle.

World Generation



 * Other Stones


 * Diorite or calcite and what appears to be tuff spawn in layers of stone in straight lines instead of splotches.

Blocks



 * Spore Blossom


 * Can close.


 * Azalea Log


 * Between Java Edition snapshots 21w05a and 21w10a, many blocks (flowers, leaves, grass, ferns, sweet berry bushes, small dripleafs) had a block tag called "azalea_log_replaceable", possibly implying the existence of azalea logs.

Structures

 * Underground Cabin


 * Seen in the Deep Dark biome during the Minecraft Live 2020 stream.
 * Consists of a chamber with a cobblestone floor and stripped log support beams, containing 3 barrels, a blast furnace, and a large chest, with cobwebs and candles in and around it.
 * May possibly not be a generated structure, but instead a construction built for the purpose of the Warden showcase.

Trivia

 * This is the third major update for Bedrock Edition that is split into several updates since Village & Pillage in 2019.