Basalt Deltas
The Basalt Deltas biome (Nether) has a temperature of 2 (No rain). 3 mob types spawn here — mostly Magma Cube, Ghast at night and Strider by day — and it can generate Nether Fortress, Ruined Portal. Spawn weights and ores below come from the Java 26.3 game files.
- Temperature
- 2No rain
- Mob types
- 3
- Most common monster
- Magma Cube71.4%
- Most common animal
- Strider100%
- Structures
- 2
- Extra ore
- Nether Gold Ore, Nether Quartz Ore
Mobs that spawn in the Basalt Deltas
Game dataEvery natural spawn with its weight. Within each group, a mob's share is its chance per spawn attempt.
Monsters
| Mob | Weight | Share | Pack size |
|---|---|---|---|
 Magma Cube | 100 | 71.4% | 2–5 |
 Ghast | 40 | 28.6% | 1 |
Animals
| Mob | Weight | Share | Pack size |
|---|---|---|---|
 Strider | 60 | 100% | 1–2 |
Monsters spawn in darkness (block light 0 in the Overworld); animals mostly when chunks generate and on grass in light.
Structures in the Basalt Deltas
These structures can generate in this biome.
Your coordinates and biome beside the game
The in-game Companion is a small window beside Minecraft with your live coordinates and the biome you are in, plus every recipe, mob drop and enchantment a search away, so you never alt-tab to a wiki.
- Live coordinates and biome
- Every recipe a search away
- Mob drops and enchantments
Ores in the Basalt Deltas
Ores that generate here, with the best Y level for each. Highlighted: extra ore only this kind of biome gets (Nether Gold Ore, Nether Quartz Ore).
Ancient Debris
Nether Gold Ore
Nether Quartz OreBasalt Deltas climate
Game data- Dimension
- Nether
- Temperature
- 2
- Downfall
- 0
- Weather
- No rain
- Fog colour
-
#685f70 - Water colour
-
#3f76e4 - Biome ID
minecraft:basalt_deltas
Find it with /locate biome and the ID above.
Data: Minecraft Java Edition 26.3 game files. How we source this
The Basalt Deltas is a biome (Nether; temperature 2, No rain). Its most common monsters are Magma Cube, Ghast; its animals are Strider. It can contain 2 structure types: Nether Fortress, Ruined Portal. It also generates extra Nether Gold Ore, Nether Quartz Ore.
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Basalt Deltas FAQ (Java 26.3)
What mobs spawn in the Basalt Deltas?
Monsters: Magma Cube, Ghast. Animals: Strider. 3 mob types in total.
What structures are in the Basalt Deltas?
Nether Fortress, Ruined Portal.
Does it rain or snow in the Basalt Deltas?
Its temperature is 2, so its weather is: No rain.
Does the Basalt Deltas have extra ores?
Yes: it generates extra Nether Gold Ore, Nether Quartz Ore that most biomes don't get.