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 grey-purple fog.
Description
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.
Sounds
Music
These music tracks play while the player is in the Basalt Deltas.
| Filename in Minecraft |
Gameplay | Soundtrack Title | Soundtrack | Track preview |
|---|---|---|---|---|
| So Below | Soul sand valleys and basalt deltas | "So Below" | – |
Ambience
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
ID
| Name | Identifier | Numeric ID | Translation key |
|---|---|---|---|
| Basalt Deltas | basalt_deltas | 173 | biome.minecraft.basalt_deltas |
| Name | Identifier | Numeric ID | Translation key |
|---|---|---|---|
| Basalt Deltas | ? | ? | [verify] |
History
| Upcoming Java Edition | |||||
|---|---|---|---|---|---|
| 1.16 | 20w15a | Added the basalt deltas. | |||
| 20w16a | Increased the amount 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. | ||||
| Upcoming Bedrock Edition | |||||
| 1.16.0 | beta 1.16.0.57 | Added basalt deltas. | |||
Issues
Issues relating to "Basalt Deltas" are maintained on the bug tracker. Report issues there.





