Basalt Deltas

From Minecraft Wiki
Jump to: navigation, search

Grass Block JE6 BE5.png
This page describes content that may be included in a future update.
These features have appeared in development versions, but the full update containing these features has not been released yet.
The biome

Basalt deltas are volcanic biomes in the Nether. Magma cubes, ghasts, and striders spawn naturally here. Blackstone and basalt generate commonly while gravel, magma blocks, and netherrack generate in the shore of mountains above the lava seas. White ash particles can be seen floating through the air while traveling through the biome, with a gray-purple fog.


A fortress seen from the basalt deltas.

Basalt deltas are composed largely of basalt and blackstone mountains, with lava lakes and magma blocks generating throughout the biome. The blackstone is less common and tends to form relatively horizontal shelves and blobs. The fog is a very dull lilac. Small and large clusters of basalt columns of varying height can be found throughout the biome. Many of these are clustered in and /or along the main lava ocean, which like all 1.16 Nether biomes, tends to undercut its various levels.

The typical nether fortresses and caves filled with nether quartz ore will also cut through the biome. Unlike other nether biomes, bastion remnants do not generate here.

In survival mode, the basalt deltas are challenging biomes to navigate. This is due to the jagged terrain and many lava lakes which are often hidden from view. Magma cubes spawn most frequently in this biome, so survival players should plan accordingly.

Ores generate twice as frequently in this biome compared to others, due to the lower quantities of Netherrack.

In Java Edition :

MobSpawn chanceGroup size
Hostile category
Ghast[note 1]401401
Magma Cube1001402–5
Passive category
  1. Only 5% of spawn attempts succeed.

In Bedrock Edition :

MobSpawn chanceGroup size
Hostile category
Magma Cube1001402–5
Passive category



These music tracks play while the player is in the Basalt Deltas.

in Minecraft
Gameplay Soundtrack Title Soundtrack Track preview
So Below Soul sand valleys and basalt deltas "So Below"


Nether ambience plays while the player is in the Nether.

Name Sound Group
Basalt Deltas Ambience Loop
Basalt deltas active 1 Loop Additions
Basalt deltas active 2
Basalt deltas active 3
Basalt deltas active 4
Basalt Deltas Basalt Ground 1
Basalt Deltas Basalt Ground 2
Basalt Deltas Basalt Ground 3
Basalt Deltas Basalt Ground 4
Basalt Deltas Click 1
Basalt Deltas Click 2
Basalt Deltas Click 3
Basalt Deltas Click 4
Basalt Deltas Click 5
Basalt Deltas Click 6
Basalt Deltas Click 7
Basalt Deltas Click 8
Basalt Deltas Debris 1
Basalt Deltas Debris 2
Basalt Deltas Debris 3
Basalt Deltas Heavy Click 1
Basalt Deltas Heavy Click 2
Basalt Deltas Long Debris 1
Basalt Deltas Long Debris 2
Basalt Deltas Plode 1
Basalt Deltas Plode 2
Basalt Deltas Plode 3
Basalt Deltas Twist 1
Basalt Deltas Twist 2
Basalt Deltas Twist 3
Basalt Deltas Twist 4

Data values[edit]


Java Edition:

NameNamespaced IDNumeric ID Translation key
Basalt Deltasbasalt_deltas 173biome.minecraft.basalt_deltas

Bedrock Edition:

NameNamespaced IDNumeric ID Translation key
Basalt Deltas? ?[verify]


Upcoming Java Edition
1.1620w15aAdded the basalt deltas.
20w16aIncreased the amount of lava lakes on basalt deltas.
20w19aPatches of blackstone and gravel now generate in basalt deltas at level of the lava ocean.
20w21aAncient debris and Nether Gold Ore can now generate.
Upcoming Bedrock Edition
1.16.0beta basalt deltas.


Issues relating to "Basalt Deltas" are maintained on the bug tracker. Report issues there.