Sulfur Caves

Sulfur Caves

Lit

Natural

Structures	Woodland Mansion‌[BE only]
Features	Sulfur Pool Sulfur Spring
Blocks	Cinnabar Sulfur Sulfur Spike Potent Sulfur Water
Climate
Temperature	0.8
Downfall	0.4
Precipitation	Yes
Colors
Fog color	#8cb831
Grass color	#aba64f
Foliage color	#77ab2f
Dry foliage color	#a37546
Water color	#34bf89
Water fog color	#17543c
Vibrant Visuals
Atmospherics	Default
Lighting	Default
Volumetric fog	Sulfur Caves
Color grading	Warmish

Sulfur caves are cave biomes composed of sulfur and cinnabar blocks, where sulfur cubes and cave spiders spawn. Sulfur pools with potent sulfur generate here, as well as sulfur spikes.

Generation

Sulfur caves generate underground at the same depth as lush caves and dripstone caves, although they tend to be much smaller in size and more fragmented. Sulfur springs sometimes generate on the surface, indicating there are sulfur caves below.

The biome tends to generate at very low weirdness values with high erosion and at a broad range of moderate continentalness. This means that they never generate directly under river valleys or below high mountains, though they may generate between rivers or under hilltops. They are common under flatland terrain near swamps, deserts and other flatland biomes.

Rarely, sulfur caves can generate on the surface at weirdness values below -1.25. They may also leak out of cave openings or ravines.

Description

The main landscape is composed of sulfur and cinnabar, layers in approximately same amount of blocks, with frequent sulfur pools possessing a unique acid-green color of water. Potent sulfur is found only on the bottom of these pools, creating noxious gas with white bubbles particles in and on top of the water. Nausea is inflicted to mobs and players when they come in contact with this noxious gas.

Sulfur spikes in varying patches and sizes generate on top of sulfur. Other terrain blocks such as deepslate and stone variants generate between the sulfur and cinnabar.

Ores rarely generate here, because sulfur and cinnabar replace most stone and deepslate blocks. The sky fog has a unique green color.

When a minecart with chest from a mineshaft spawns in sulfur caves, it has a chance to contain the "Bounce" music disc. In Bedrock Edition, woodland mansions can generate in sulfur caves, similar to other cave biomes, although this is nearly impossible.

With Vibrant Visuals, sulfur caves use warmish color grading, which tints the biome to look more humid and warm. They use a strong, dense volumetric fog; however, this is visible only on the surface with directional lighting.

Mobs

The following mobs naturally spawn here:

In Java Edition

Mob	Spawn weight	Group size
Monster category
Sulfur Cube	100⁄315	2–4
Creeper	50⁄315	2
Skeleton	50⁄315	2
Zombie	50⁄315	2
Slime[note 1]	25⁄315	1
Cave Spider	20⁄315	1
Enderman	10⁄315	1
Witch	5⁄315	1
Zombie Villager	5⁄315	1
Ambient category
Bat	1	8

{ "hasNotes": true, "notes": { "Slime": "Spawn attempt succeeds only in slime chunks." }, "1": { "totalWeight": 315, "mobs": [ { "size": "2-4", "mob": "Sulfur Cube", "weight": 100 }, { "size": "2", "mob": "Creeper", "weight": 50 }, { "size": "2", "mob": "Skeleton", "weight": 50 }, { "size": "2", "mob": "Zombie", "weight": 50 }, { "note": "Spawn attempt succeeds only in slime chunks.", "mob": "Slime", "weight": 25, "notename": "Slime", "size": "1" }, { "size": "1", "mob": "Cave Spider", "weight": 20 }, { "size": "1", "mob": "Enderman", "weight": 10 }, { "size": "1", "mob": "Witch", "weight": 5 }, { "size": "1", "mob": "Zombie Villager", "weight": 5 } ], "category": "monster" }, "2": { "totalWeight": 10, "mobs": [ { "size": "8", "mob": "Bat", "weight": 10 } ], "category": "ambient" } }

In Bedrock Edition

Mob	Spawn weight	Group size
Monster category
Sulfur Cube	150	2–4
Slime[note 1]	100	1
Zombie[note 2]	50.05	2
Creeper	50	2
Skeleton	50	2
Cave Spider	20	1
Enderman	10	1–2
Zombie Villager[note 3]	4.95	2
Witch	1	1
Creature category
Glow Squid	1	2–4
Ambient category
Bat	1	2

{ "hasNotes": true, "notes": { "Zombie Villager": "Internally a 9% chance within a combined weight of 55 for both zombies and zombie villagers.", "Slime": "Spawn attempt succeeds only in slime chunks.", "Zombie": "Internally a 91% chance within a combined weight of 55 for both zombies and zombie villagers." }, "1": { "totalWeight": 436, "mobs": [ { "size": "2-4", "mob": "Sulfur Cube", "weight": 150 }, { "note": "Spawn attempt succeeds only in slime chunks.", "mob": "Slime", "weight": 100, "notename": "Slime", "size": "1" }, { "note": "Internally a 91% chance within a combined weight of 55 for both zombies and zombie villagers.", "mob": "Zombie", "weight": 50.05, "notename": "Zombie", "size": "2" }, { "size": "2", "mob": "Creeper", "weight": 50 }, { "size": "2", "mob": "Skeleton", "weight": 50 }, { "size": "1", "mob": "Cave Spider", "weight": 20 }, { "size": "1-2", "mob": "Enderman", "weight": 10 }, { "note": "Internally a 9% chance within a combined weight of 55 for both zombies and zombie villagers.", "mob": "Zombie Villager", "weight": 4.95, "notename": "Zombie Villager", "size": "2" }, { "size": "1", "mob": "Witch", "weight": 1 } ], "category": "monster" }, "2": { "totalWeight": 10, "mobs": [ { "size": "2-4", "mob": "Glow Squid", "weight": 10 } ], "category": "creature" }, "3": { "totalWeight": 10, "mobs": [ { "size": "2", "mob": "Bat", "weight": 10 } ], "category": "ambient" } }

Sounds

Music

These music tracks play while the player is in sulfur caves:

Data values

ID

Java Edition:

Name	Identifier	Translation key
Sulfur Caves	sulfur_caves	biome.minecraft.sulfur_caves

Bedrock Edition:

Name	Identifier	Numeric ID
[No displayed name]	sulfur_caves	194

Biome definition

{
  "attributes": {
    "minecraft:audio/background_music": {
      "default": {
        "max_delay": 24000,
        "min_delay": 12000,
        "sound": "minecraft:music.overworld.sulfur_caves"
      }
    },
    "minecraft:gameplay/natural_mob_spawns": {
      "argument": {
        "spawn_costs": {},
        "spawns_by_category": {
          "ambient": [
            {
              "type": "minecraft:bat",
              "count": 8,
              "weight": 10
            }
          ],
          "monster": [
            {
              "type": "minecraft:sulfur_cube",
              "count": {
                "type": "minecraft:uniform",
                "max_inclusive": 4,
                "min_inclusive": 2
              },
              "weight": 100
            },
            {
              "type": "minecraft:creeper",
              "count": 2,
              "weight": 50
            },
            {
              "type": "minecraft:skeleton",
              "count": 2,
              "weight": 50
            },
            {
              "type": "minecraft:slime",
              "count": 1,
              "weight": 25
            },
            {
              "type": "minecraft:cave_spider",
              "count": 1,
              "weight": 20
            },
            {
              "type": "minecraft:zombie",
              "count": 2,
              "weight": 50
            },
            {
              "type": "minecraft:enderman",
              "count": 1,
              "weight": 10
            },
            {
              "type": "minecraft:witch",
              "count": 1,
              "weight": 1
            },
            {
              "type": "minecraft:zombie_villager",
              "count": 1,
              "weight": 5
            }
          ]
        }
      },
      "modifier": "overlay"
    },
    "minecraft:visual/fog_color": "#8cb831",
    "minecraft:visual/sky_color": "#78a7ff",
    "minecraft:visual/water_fog_color": "#17543c"
  },
  "carvers": [
    "minecraft:cave",
    "minecraft:cave_extra_underground",
    "minecraft:canyon"
  ],
  "downfall": 0.4,
  "effects": {
    "grass_color": "#aba64f",
    "water_color": "#34bf89"
  },
  "features": [
    [],
    [
      "minecraft:lake_lava_underground",
      "minecraft:lake_lava_surface",
      "minecraft:rooted_sulfur_spring",
      "minecraft:sulfur_pool"
    ],
    [
      "minecraft:amethyst_geode"
    ],
    [
      "minecraft:monster_room",
      "minecraft:monster_room_deep"
    ],
    [],
    [],
    [
      "minecraft:ore_dirt",
      "minecraft:ore_gravel",
      "minecraft:ore_granite_upper",
      "minecraft:ore_granite_lower",
      "minecraft:ore_diorite_upper",
      "minecraft:ore_diorite_lower",
      "minecraft:ore_andesite_upper",
      "minecraft:ore_andesite_lower",
      "minecraft:ore_tuff",
      "minecraft:ore_coal_upper",
      "minecraft:ore_coal_lower",
      "minecraft:ore_iron_upper",
      "minecraft:ore_iron_middle",
      "minecraft:ore_iron_small",
      "minecraft:ore_gold",
      "minecraft:ore_gold_lower",
      "minecraft:ore_redstone",
      "minecraft:ore_redstone_lower",
      "minecraft:ore_diamond",
      "minecraft:ore_diamond_medium",
      "minecraft:ore_diamond_large",
      "minecraft:ore_diamond_buried",
      "minecraft:ore_lapis",
      "minecraft:ore_lapis_buried",
      "minecraft:ore_copper",
      "minecraft:underwater_magma",
      "minecraft:disk_sand",
      "minecraft:disk_clay",
      "minecraft:disk_gravel"
    ],
    [
      "minecraft:sulfur_spike_cluster",
      "minecraft:sulfur_spike"
    ],
    [
      "minecraft:spring_water",
      "minecraft:spring_lava"
    ],
    [
      "minecraft:glow_lichen",
      "minecraft:patch_tall_grass_2"
    ],
    [
      "minecraft:freeze_top_layer"
    ]
  ],
  "has_precipitation": true,
  "temperature": 0.8
}

Achievements

Icon		Achievement	In-game description	Actual requirements (if different)	Gamerscore earned	Trophy type (PS)
PS4	Other
		Adventuring Time	Discover 17 biomes.	Visit any 17 biomes. Does not have to be in a single world.	40	Silver

Advancements

Icon	Advancement	In-game description	Actual requirements (if different)
	Adventuring Time	Discover every biome	Visit all of these 56​[until: Fourth Drop 2026]/57​[upcoming] biomes: Badlands Bamboo Jungle Beach Birch Forest Cherry Grove Cold Ocean Dappled Forest Dark Forest Deep Cold Ocean Deep Dark Deep Frozen Ocean Deep Lukewarm Ocean Deep Ocean Desert Dripstone Caves Eroded Badlands Flower Forest Forest Frozen Ocean Frozen Peaks Frozen River Grove Ice Caves Ice Spikes Jagged Peaks Jungle Lukewarm Ocean Lush Caves Mangrove Swamp Meadow Mushroom Fields Ocean Old Growth Birch Forest Old Growth Pine Taiga Old Growth Spruce Taiga Pale Garden Plains River Savanna Savanna Plateau Snowy Beach Snowy Plains Snowy Slopes Snowy Taiga Sparse Jungle Stony Peaks Stony Shore Sunflower Plains Sulfur Caves Swamp Taiga Warm Ocean Windswept Forest Windswept Gravelly Hills Windswept Hills Windswept Savanna Wooded Badlands The advancement is only for Overworld biomes. Other biomes may also be visited, but are ignored for this advancement.

History

Announcement

Java Edition

Bedrock Edition

Issues

Issues relating to "Sulfur Caves" are maintained on the bug tracker. Issues should be reported and viewed there.

Gallery

Screenshots

• 
  A canyon exposing sulfur caves
• 
  Mineshafts in sulfur caves, where the "Bounce" music disc can be found
• 
  A thin sulfur carver cave
• 
  An aquifer in sulfur caves
• 
  A monster room in sulfur caves
• 
  Floating mineshafts in a large sulfur cave
• 
  A sulfur pool inside a mineshaft
• 
  Surface sulfur caves in a desert, with some sulfur springs nearby
• 
  Sulfur caves on the surface in frozen biomes
• 
  When sulfur caves generate at the surface, they commonly form deep lakes with sparse sulfur blocks.
• 
  Sulfur caves together with lush caves and dripstone caves in one cave
• 
  The dense volumetric fog in sulfur caves with Vibrant Visuals
• 
  The Sulfur Cave seed template thumbnail
• 
  The green classic fog in sulfur caves
• 
  The extremely rare occurence of a woodland mansion in Bedrock Edition surface sulfur caves
• 
  Mansions are more common in sulfur caves single biome worlds.

Mojang images

• 
  A sulfur cave generating with cave features on the surface

Development screenshots

• 
  Water flowing into deepslate levels from sulfur caves
• 
  A house in sulfur caves, built with the sulfur and cinnabar block variations
• 
  A pool of gas created by potent sulfur
• 
  Sulfur cubes in a sulfur cave's entrance
• 
  Kai using a log on a sulfur cube in sulfur caves

References