Swamp

Swamp
Structures	Swamp Hut
Features	Fossil; Swamp Oak; Huge Mushroom‌
Blocks	Grass Block; Water; Lily Pad; Clay; Vines; Oak Log; Oak Leaves; Blue Orchid; Mushrooms; Mushroom Blocks‌; Dead Bush; Firefly Bush; Seagrass‌;
Climate
Temperature	0.8
Downfall	0.9‌; 0.5‌
Precipitation	Yes
Colors
Grass color	; #6A7039; ; #4C763C
Foliage color	; #6A7039
Water color	; #617B64‌; ; #4C6559‌
Underwater fog color	; #232317‌; ; #4C6559‌

A swamp is a wetland biome where slimes, frogs, and bogged can spawn.

Description

Swamps have sparse oak trees which can grow on land or in shallow water and generate with vines growing on them. Mushrooms are more common here than in most Overworld biomes. Sugar cane is found often growing on shores. In Java Edition, seagrass litters the bottom of flooded areas. Firefly bushes and blue orchids grow among the grass, the latter of which are found exclusively in swamps. Lily pads are scattered across the surface of the water and dead bushes dot the surface of the land. In Bedrock Edition, huge mushrooms can generate as well.

Swamp biomes, alongside mangrove swamps and deserts, can generate rare underground fossils.

A swamp rarely generates swamp huts, housing a witch and a black cat. Only witches can spawn in and around the hut.

Swamps have elevations low enough to go below sea level throughout much of the area. A large portion of swamps are flooded, where patches of clay are found on the lakebed. The shores of swamps may have marsh-like terrain, where the shores are very irregular, often without smooth transition, and with some small puddles generated. Water in swamps takes on a gray-green color.

Underwater fog is thick here so that visibility is lower than in other biomes underwater. Additionally, unlike other Overworld biomes, swamps have varying tints for grass blocks, grass, and leaves, etc. See Biome#Special plant tints.

Generation

The swamp biome generates at temperatures of -0.45 to 0.2, meaning it generates at the temperate and cold biome temperature noise values. Swamps generate next to most plains, sunflower plains, flower forests, most forests, birch forests, dark forests, most taigas, old growth taigas, and some windswept savannas. Swamp biomes are usually found in flat terrain near sea level in regions with very high erosion values, and they also replace rivers in these areas. Swamps never directly border the ocean, with some other biomes generating between them instead. However, their water bodies are often connected to the ocean.

Mobs

Slimes may spawn in swamps during the night or thunderstorms, exclusively between Y=50 and Y=70, making swamps and mangrove swamps the only places where slimes can be found above ground. Their spawn rate is affected by the moon phase, spawning most often during full moon and not spawning at all during new moon. Bogged add an additional threat to the night, thunderstorms, or caves‌, as their poison arrows can increase the danger of hostile mobs.

Villagers that spawn in swamps get a unique swamp-themed look. While villagers have swamp-specific types, no village featuring exclusively these villagers can be generated. The only way for these villagers to spawn is either by being bred in a swamp, curing a zombie villager that spawned in a swamp, or finding a village that generated with some parts reaching the swamp.

The following mobs naturally spawn here：

In **Java Edition**
Mob	Spawn weight	Group size
Monster category
Creeper	¹⁰⁰⁄₅₁₆	4
Skeleton	⁷⁰⁄₅₁₆	4
Slime^{[note 1]}	¹⁰⁰⁄₅₁₆	4
Spider	¹⁰⁰⁄₅₁₆	4
Zombie	⁹⁵⁄₅₁₆	4
Bogged	³⁰⁄₅₁₆	4
Enderman	¹⁰⁄₅₁₆	1–4
Witch	⁵⁄₅₁₆	1
Zombie Villager	⁵⁄₅₁₆	1
Slime^{[note 1]}	¹⁄₅₁₆	1
Creature category
Sheep	¹²⁄₅₀	4
Chicken	¹⁰⁄₅₀	4
Frog	¹⁰⁄₅₀	2–5
Pig	¹⁰⁄₅₀	4
Cow	⁸⁄₅₀	4
Underground water creature category
Glow Squid	1	4–6
Ambient category
Bat	1	8

↑ ^a ^b Slimes are spawned twice, once for slime chunks and once for the surface.

In **Bedrock Edition**
Mob	Spawn weight	Group size
Monster category
Creeper	¹⁰⁰⁄₅₄₅	1
Slime^{[note 1]}	¹⁰⁰⁄₅₄₅	1
Spider	¹⁰⁰⁄₅₄₅	1
Zombie	⁹⁵⁄₅₄₅	4
Skeleton	⁸⁰⁄₅₄₅	2
Bogged	⁵⁰⁄₅₄₅	4
Enderman	¹⁰⁄₅₄₅	2–3
Witch	⁵⁄₅₄₅	1
Zombie Villager	⁵⁄₅₄₅	4
Creature category
Sheep	¹²⁄₆₀	2–3
Chicken	¹⁰⁄₆₀	2–4
Frog	¹⁰⁄₆₀	2–5
Glow Squid	¹⁰⁄₆₀	2–4
Pig	¹⁰⁄₆₀	1–3
Cow	⁸⁄₆₀	2–3
Ambient category
Bat	1	2

↑ Slimes are spawned once, for both slime chunks and the surface.

Sounds

Music

These music tracks play while the player is in the Swamp.

Filename in Minecraft	Gameplay	Soundtrack Title	Soundtrack	Weight
aerie.ogg	Lush Caves, Forest, Dark Forest, Birch Forest, Old Growth Birch Forest, Jungle, , Old Growth Taiga	"Aerie"	Minecraft: The Wild Update (Original Game Soundtrack) No. 2	1
firebugs.ogg	Lush Caves, Forest, Dark Forest, Birch Forest, Old Growth Birch Forest, Jungle, , Old Growth Taiga	"Firebugs"	Minecraft: The Wild Update (Original Game Soundtrack) No. 1	1
labyrinthine.ogg	Lush Caves, Forest, Dark Forest, Birch Forest, Old Growth Birch Forest, Jungle, , Old Growth Taiga	"Labyrinthine"	Minecraft: The Wild Update (Original Game Soundtrack) No. 3	1

Data values

ID

Java Edition:

Name	Identifier	Translation key
Swamp	`swamp`	`biome.minecraft.swamp`

Bedrock Edition:

Name	Identifier	Numeric ID
[No displayed name]	`swampland`	`6`

History

Java Edition Alpha
v1.2.0			preview				Added proper biomes, including swampland. However, the biome itself was completely different from its modern counterpart.
v1.2.0			preview				Forests are defined by having a rainfall value of 40% or greater and a temperature value between 50% and 70%.
Java Edition Beta
1.8			September 3, 2011				Notch teased a screenshot of the new swampland biome, with oak trees with vines.
			Pre-release				Swampland generation has been overhauled. Swampland oak trees, vines, marsh-like areas and dead bushes now generate. Foliage and grass is now a lush green color, akin to forests.
			Pre-release				Snow no longer generates in swamplands.
Java Edition
1.0.0			Beta 1.9 Prerelease				Grass, leaves and water blocks are now tinted a grayish green on swamplands. However, this change resulted in biome color and biome transitions becoming essentially nonexistent.
							Water in swamplands receives a unique tint ( #E0FF70) that is applied to its base blue color.
							Lily pads now generate in swamplands.
1.1			12w01a				Color transitions in swamplands have been fixed and smoothed.
1.1			12w01a				Changed the color of the water tint to #E0FFAE.
1.4.2			12w40a				Added witch huts, which may generate in swamplands.
1.4.2			12w40a				Slimes now spawn in swamplands.
1.7.2			13w36a				Swampland is now required for the new "Adventuring Time" achievement.
1.7.2			13w38b				Marsh-like areas and dead bushes no longer generate in swamplands.
1.8			14w26a				Marsh-like areas and dead bushes generate in swamplands again.
1.10			16w20a				Added fossils, which can generate in swamplands.
1.13			18w14a				Seagrass now generates in swamplands.
			18w15a				#617B64 changed the color of swamp water.
			18w19a				"Swampland" has been renamed to "Swamp".
September 28, 2019							During MINECON Live 2019, the swamp came in second place in the Biome Vote; mangrove trees, boats with chests, and frogs would be added.
1.14			18w43a				Drowned no longer spawn in swamps.
1.18			Experimental Snapshot 1				Swamp biomes currently do not generate correctly.
			experimental snapshot 2				Swamp biome generation has been fixed.
			experimental snapshot 3				Swamps are less likely to overlap cold or dry biomes.
			experimental snapshot 3				Hanging water is no longer placed in swamps.
			experimental snapshot 4				Swamps are less likely to extend far out from the coastline.
			experimental snapshot 5				Swamps have been moved slightly more inland.
			experimental snapshot 5				Swamp oak trees are now able to generate in slightly deeper water than before.
			experimental snapshot 6				Swamps are now able to generate in dry areas, making them less fragmented overall.
October 16, 2021							The Wild Update was announced at Minecraft Live 2021, showing in-game clips of previously-announced Biome Vote content, along with new features such as mud, fireflies, tadpoles, and frogs.
1.19			22w11a				Added frogs, which spawn in swamps.
1.20			23w17a				"A Familiar Room" may now be played in swamps.
1.20.5 Experiment Update 1.21			24w07a				Bogged now spawn in swamps.
1.21.5			25w05a				Added firefly bushes, which can generate in swamps.
Pocket Edition Alpha
v0.9.0			build 1				Added swamps and swamp hills, along with many other biomes.
v0.10.0			build 1				The water in swamps is now tinted dark gray.
v0.10.0			build 1				Huge mushrooms now generate in swamps.
v0.13.0			build 1				Marsh-like areas no longer generate in swamps.
v0.14.0			build 1				Added witch huts, which generate in swamps.
Pocket Edition
1.1.3			alpha 1.1.3.0				Added fossils, which generate in swamps.
Bedrock Edition
1.2.13			beta 1.2.13.8				Added drowned, which can spawn in swamps.
1.10.0			beta 1.10.0.3				Drowned no longer spawn in swamps during the day.
1.18.10 Experiment Wild Update			beta 1.18.10.24				Added frogs, which spawn in swamps.
1.20.70 Experiment Update 1.21			Preview 1.20.70.24				Bogged now spawn in swamps.
1.21.60			Preview 1.21.60.23				Blue orchids now generate more frequently and in larger patches.
							Swamp oaks now generate slightly more frequently.
							Swamp oaks no longer generate in direct contact with the ground.
							Lily pads now generate more frequently.
1.21.70 Experiment Drop 1 2025			Preview 1.21.70.20				Added firefly bushes, which can generate in swamps.
1.21.90			Preview 1.21.90.26				Added green atmospherics, color grading, fog, and lighting to swamps in Vibrant Visuals.
Upcoming Bedrock Edition
1.21.100			Preview 1.21.100.20				Mushrooms now properly generate under trees.
Legacy Console Edition
Xbox 360	Xbox One	PS3	PS4	PS Vita	Wii U	Switch
TU5	CU1	1.00	1.00	1.00	Patch 1	1.0.1	Added swamps.
TU9	CU1	1.00	1.00	1.00			Color transitions within swamps have been smoothed.
TU19	CU7	1.12	1.12	1.12			Added witch huts, which generate only in swamps.
TU31	CU19	1.22	1.22	1.22	Patch 3		Generation of marsh-like areas in swamp biomes has been changed.
TU43	CU33	1.36	1.36	1.36	Patch 13		Added fossils, which can generate in swamps.

The first image of a swamp.
Old view of a swamp biome.
A swamp in beta 1.8.

Data history

Java Edition
1.13			17w47a				If numeric IDs for biomes were ever deprecated, it was most likely in this version.
1.13			pre5				The ID `swampland` has been changed to `swamp`.

Issues

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

Gallery

Screenshots

A swamp in Bedrock Edition, showing huge mushrooms.
Another swamp in Bedrock Edition.
A slime and a swamp hut in a swamp.
View of marsh-like terrain characteristic of swamps.
An example of the temperature variation in swamps, leading to different shades of green for the grass blocks.
Same as the previous image, edited for better visibility.
A river running through a swamp.
A swamp generated next to a frozen ocean.
Another view of a swamp.
Different water colors in swamp biome.
A swamp and a mangrove swamp bordering each other.
Water in a swamp biome.
A swamp in pocket edition.
Swamp near a large hill.
A swamp near a shattered snow taiga.
A river running through a swamp.
A lava lake generating in a swamp.
A ravine generating between the borders of a swamp and plains biome.
A swamp single biome world before 1.18.
A swamp in Bedrock Edition.
A swamp with ray tracing.