Basalt Deltas

Type	Nether
Rarity	Uncommon
Temperature	2.0
Structures	Nether fortresses Glowstone blobs Lava seas Delta Basalt columns Ruined portals
Blocks	Netherrack Basalt Blackstone Magma Block Lava Gravel Brown Mushroom Red Mushroom

The Basalt Deltas is a volcanic biome situated in the Nether.

Description[edit]

The Basalt deltas is composed largely of basalt and blackstone. Its fog appears in a dull lilac color with ash particles passing by. Archipelagos with islands of different sizes can be found around the lava seas nearby.

Nether fortresses and caves filled with nether quartz ore can also be found here. Ore generates more commonly (to compensate for less netherrack to generate in).

Bastion remnants do not generate here.

The Basalt deltas are exceedingly dangerous due to the jagged terrain, countless deltas, ghasts and magma cubes. Magma cubes jump from above and are amphibious in lava. Due to their high spawn rate, they can pose a big threat to the player even if wearing netherite armor, but they also make the biome the best place to obtain magma cream. Being bumped here is more dangerous than average, as cliffs and hidden lava pools are common. Their jumping movement, however, requires more space than the player.

In *Java Edition*
Mob	Spawn chance	Group size
Hostile category
Ghast^{[note 1]}	⁴⁰⁄₁₄₀	1
Magma Cube	¹⁰⁰⁄₁₄₀	2–5
Passive category
Strider	⁶⁰⁄₆₀	2–4

↑ Only 5% of spawn attempts succeed.

In Bedrock Edition
Mob	Spawn chance	Group size
Hostile category
Ghast	⁴⁰⁄₁₄₀	1
Magma Cube	¹⁰⁰⁄₁₄₀	2–5
Passive category
Strider	²⁰⁄₂₀	2–4

Sounds[edit]

Music[edit]

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

Filename in Minecraft	Gameplay	Soundtrack Title	Soundtrack
nether1.ogg	The Nether	"Concrete Halls"	Minecraft - Volume Beta No. 7
nether2.ogg	The Nether	"Dead Voxel"	Minecraft - Volume Beta No. 3
nether3.ogg	The Nether	"Warmth"	Minecraft - Volume Beta No. 11
nether4.ogg	The Nether	"Ballad of the Cats"	Minecraft - Volume Beta No. 15
so_below.ogg	Soul Sand Valley and Basalt Deltas	"So Below"	Minecraft: Nether Update (Original Game Soundtrack) No. 3

Ambience[edit]

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]

ID[edit]

Java Edition:

Name	Namespaced ID	Numeric ID	Translation key
Basalt Deltas	`basalt_deltas`	`173`	`biome.minecraft.basalt_deltas`

Bedrock Edition:

Name	Namespaced ID	Numeric ID
[No displayed name]	`basalt_deltas`	`181`

Trivia[edit]

Netherrack is more rare in Baslats Deltas, due to the biome being made up mostly of Baslat.

History[edit]

Java Edition
1.16	20w15a	Added the basalt deltas.
	20w16a	Increased the number of lava lakes on basalt deltas.
	20w19a	Patches of blackstone and gravel now generate in basalt deltas at level of the lava ocean.
	20w21a	Ancient debris and Nether Gold Ore can now generate.
Bedrock Edition
1.16.0	beta 1.16.0.57	Added basalt deltas.