Minecraft:Java Edition 1.18 Experimental Snapshot 1

Template:Log4j vulnerability Template:Infobox version

1.18 Experimental Snapshot 1 (known as 1_18_experimental-snapshot-1 in the launcher) is the first Minecraft:experimental snapshot for Minecraft:Java Edition 1.18, released on July 13, 2021,<ref name="article_1.18_experimetal_snapshot_1">Template:Mcnet</ref> which introduces new terrain generation and enables features from the preview data pack. This version is a fork of 1.17.1 Pre-release 1. This is the first experimental snapshot released in 2021.

Additions

World generation

Template:EnvLink

Completely overhauled.
Now stretch down to Y=-59.
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 Minecraft:stone.
- Stone transitions to Minecraft:deepslate from Y=0 to Y=-7.
- Deepslate now completely replaces stone from Y=-8 to Minecraft:bedrock.
  - Certain types of ores and structures still generate in the deepslate layer, as well as Minecraft:tuff.
  - Minecraft:Dirt, Minecraft:diorite, Minecraft:granite and Minecraft:andesite do not generate in this layer.
Contain Minecraft:aquifers, bodies of Minecraft:water with different heights, independent of sea level (Y=63).
- Aquifers below Y=0 sometimes generate with lava instead of water.<ref name="21w16a">Template:Snap</ref>
Improved old caves, adding more variation.<ref>Template:Tweet</ref>
New noise caves, coming in 3 forms: cheese, spaghetti, and noodle.
- The original caves still exist with their generation slightly tweaked to better blend in with 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 Minecraft:elytra.
  - Abundant with Minecraft:springs, aquifers and Minecraft: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.

Template:EnvLink

Come in 5 sub-biomes:
- Template:BiomeLink
  - A flat but elevated biome that looks like a flowery and colder Minecraft:plains, with an aqua Minecraft:grass color and dark blue water color.
  - Generates in plateaus and the lowest layers of some mountains, usually near plains and other temperate biomes.
  - Contains Minecraft:grass, Minecraft:tall grass, Minecraft:dandelions, Minecraft:azure bluets, Minecraft:cornflowers, Minecraft:blue orchids, Minecraft:poppies, Minecraft:oxeye daisies and Minecraft:alliums.
  - Only Minecraft:rabbits and Minecraft:donkeys spawn in this biome.
- Template:BiomeLink
  - Reminiscent of a Minecraft:snowy taiga with snow blocks instead of Minecraft:grass blocks.
  - Generates in the slopes of a snowy mountain when next to forested biomes.
  - Covered in Minecraft:snow, Minecraft:snow blocks, Minecraft:powder snow and is filled with Minecraft:spruce trees.
  - Rabbits, Minecraft:wolves, Minecraft:foxes, Minecraft:sheep, Minecraft:pigs, Minecraft:chickens and Minecraft:cows spawn in this biome.
- Template:BiomeLink
  - Generates in the slopes of a mountain when next to plains and snowy tundras.
  - Covered in snow layers, snow blocks, powder snow and Minecraft:ice.
  - Only rabbits and Minecraft:goats spawn in this biome.
- Template:BiomeLink
  - One of the biomes that generate in the mountain peaks.
  - Covered in snow, snow blocks and Minecraft:ice.
  - Only goats spawn in this biome.
- Template:BiomeLink
  - One of the biomes that generate in the mountain peaks.
  - Generates if the surrounding biomes are too cold for lofty peaks.
  - Covered in snow, snow blocks, ice, and Minecraft:packed ice.
  - Only goats spawn in this biome.

Template:EnvLink

Long and rare Minecraft:ore formations.
Minecraft:Copper ore veins mixed with Minecraft:granite and Minecraft:raw copper block generate above Y=0.
Minecraft:Iron ore veins mixed with Minecraft:tuff and Minecraft:raw iron block generate below Y=0.

Technical

Minecraft:Debug screen

Added two new lines: "Multinoise" and "Terrain".
- Only appear if the dimension where the player is uses the multi-noise biome source type.
- Multinoise lists the parameters used at the player's position in order to place a biome. C is continentalness, E is erosion, T is temperature, H is humidity and W is weirdness.
- Terrain lists values related to terrain generation.Template:Info needed

Changes

Blocks

Minecraft:Sculk sensor

Have been re-added to Minecraft:Creative inventory.

Minecraft:Snow block

Plants can now be placed on snow blocks.

Items

Minecraft:Bundle

Have been re-added to Creative inventory.
Can once again be crafted.

Mobs

Minecraft:Axolotls

Now only spawn in Minecraft:lush caves.

Minecraft:Goat

Now only spawn in the new mountain biomes.

General

Minecraft:Block light level now must be 0 for many hostile mobs to spawn.<ref>Template:Tweet</ref>

World generation

Minecraft:Overworld

Now uses the multi-noise biome source type.

Minecraft:Lush caves and Minecraft:dripstone caves

Now generate naturally underground and inside hills or mountains.
- Minecraft:Azalea trees now generate above lush caves.

Minecraft:Deep warm ocean

Now generates naturally.

Minecraft:Swamp

Does not generate correctly. This is fixed in 1.18 experimental snapshot 2.<ref name="tweet_henrikkniberg_1415591066179342336">Template:Tweet</ref>

Sub-Minecraft:biomes

Minecraft:Wooded hills, Minecraft:birch forest hills, Minecraft:tall birch hills, Minecraft:taiga hills, Minecraft:taiga mountains, Minecraft:gravelly mountains+, Minecraft:desert hills, Minecraft:desert lakes, Minecraft:savanna plateau, Minecraft:shattered savanna plateau, Minecraft:swamp hills, Minecraft:dark forest hills, Minecraft:ice spikes, Minecraft:snowy mountains, Minecraft:snowy taiga hills, Minecraft:snowy taiga mountains, Minecraft:modified jungle, Minecraft:jungle hills, Minecraft:bamboo jungle hills, Minecraft:jungle edge, Minecraft:modified jungle edge, Minecraft:giant tree taiga hills, Minecraft:giant spruce taiga hills, Minecraft:eroded badlands, Minecraft:badlands plateau, Minecraft:modified badlands plateau, Minecraft:modified wooded badlands plateau, and Minecraft:mushroom field shore biomes no longer generate naturally.
- Ice spikes, eroded badlands and savanna plateau were added back in 1.18 experimental snapshot 2.<ref name="tweet_henrikkniberg_1415591066179342336"/>
- Jungle edge was added back in 1.18 experimental snapshot 5.

File:1.18 Experimental Snapshot 1 approximate ore distribution.jpg

The new ore generation for 1.18 Experimental Snapshot 1.

Ore distribution

Changed ore generation of all ores making them have a spread value like Minecraft:lapis lazuli ore. Some still retain a linear generation alongside a spread generation.
Minecraft:Coal ore, Minecraft:emerald ore, and Minecraft:copper ore no longer generate below Y=0.
- Copper ore generates between Y=0 and Y=96 and like all other ores, uses spread. It peaks at Y=48.
- Emerald ore generates above Y=32 as a spread, peaking at Y=256 and decreasing in quantity as the Minecraft:altitude decreases.
- Coal ore attempts to generate twice: once, evenly between an altitude of Y=136 and Y=256; and as a spread, peaking at an altitude of Y=96 and generating between an altitude of Y=0 and Y=192.
Other ores also generate differently.
- Minecraft:Iron ore attempts to generate three times: once as a spread peaking at an altitude of Y=256, generating above Y=128; another as a spread peaking at Y=16 and generating with a minimum height of Y=-24 and a maximum height of Y=57, and a smaller one spreading evenly between the altitudes of Y=-64 and Y=72.
- Minecraft:Gold ore generates between the altitudes of Y=-64 and Y=32, peaking at Y=-16. The extra gold that generates in the Minecraft:badlands biome was left untouched.
- Minecraft:Lapis lazuli ore attempts to generate twice: once, as a spread between the altitudes of Y=32 and Y=-32, peaking at an altitude of 0; and evenly between the altitudes of Y=64 and Y=-64, generating buried like Minecraft:ancient debris.
- Minecraft:Redstone ore attempts to generate twice: once, evenly between an altitude of Y=15 and Y=-64; and as a spread, peaking at an altitude of -64 and generating below an altitude of Y=-32.
- Minecraft:Diamond ore now generate as a spread, generating below Y=16 and peaking at altitudes near Y=-64.

General

Minecraft:Terrain generation is now independent from Minecraft:biomes, with biomes adapting to whatever Minecraft:terrain they happen to generate throughout.<ref>Template:YouTube link</ref>
- This allows for natural variation in the terrain of any individual biome, both in terms of shape and elevation.
  - For example, Minecraft:forests and Minecraft:deserts could form up on a hill without needing a special biome just for that purpose.
- This additionally allows for smoother transitions between biomes.
Minecraft:Terrain is now smoother and more extreme.

General

Minecraft:Height limit

Has been increased to 384 blocks, expanding 64 blocks up and 64 blocks down, with 320 being the limit upward and -64 being the limit downward.

Minecraft:World types

"Minecraft:Large Biomes" and "Minecraft:AMPLIFIED" worlds can no longer be created.

Gallery

Taiga village generated in plains biome in experimental 1.18 snapshot

Taiga village generated in plains biome in experimental 1.18 snapshot
Plains biome became a lot hillier with hills reaching all the way over Y=130.

Plains biome became a lot hillier with hills reaching all the way over Y=130.
Entrance to the new cave systems which looks like a underground river coming from the mountain

Entrance to the new cave systems which looks like a underground river coming from the mountain
An entrance to a deep cave

An entrance to a deep cave
Waterfalls like this became very common.

Waterfalls like this became very common.
Biomes blend more smoothly, as this frozen river is connecting two frozen oceans.

Biomes blend more smoothly, as this frozen river is connecting two frozen oceans.
Stone shore biome became more common. In previous versions, it was found only where mountains were connected to ocean biomes.

Stone shore biome became more common. In previous versions, it was found only where mountains were connected to ocean biomes.
Another example of new biome blending

Another example of new biome blending
Third example of biome blending

Third example of biome blending
Frozen river going deep into giant tree taiga biome

Frozen river going deep into giant tree taiga biome
Azalea tree generated in a taiga

Azalea tree generated in a taiga
Snowy giant spruce taiga

Snowy giant spruce taiga
A lush cave extends above the ground.

A lush cave extends above the ground.

Fixes

Template:Bug could be considered fixed by this version.

Issues

This version is not supported on the bug tracker, and therefore issues affecting it will be resolved as "Invalid".<ref>Template:Bug</ref>

Trivia

This is the first time that the light level requirement for common hostile mob spawning has been changed for more than 10 years. The "light level 7 and below" rule was originally implemented on February 4, 2010, while the game was still in its Indev phase, and remained constant since with the exception of Minecraft:Java Edition Alpha v1.2.0 through Minecraft:Java Edition Alpha v1.2.0_02, where the restrictions were height based.
This is not the first "experimental snapshot", as it was preceded by Minecraft:Java Edition Combat Tests, but this is the first one to be available on Minecraft.net and the first to lead to a proper snapshot.
This is the first time the terrain has been changed since Minecraft:Java Edition 1.13 in 2018, and is the first time the terrain has been completely overhauled since Minecraft:Java Edition 1.7.2 in 2013.
Unlike later experimental snapshots, the title of this version is in title case.