Slime

For other uses, see Slime (disambiguation).

Slime

Health points	Large: 16HP × 8 Semi-large: 9HP Medium: 4HP Small: 1HP
Behavior	Hostile
Mob type	Monster
Attack strength	Large: Easy: 3HP Normal: 4HP Hard: 6HP Semi-large: Easy: 2.5HP × 1.25 Normal: 3HP Hard: 4.5HP × 2.25 Medium: Easy and Normal: 2HP Hard: 3HP Small: 0HP
Hitbox size	Large: Height: 2.08 blocks Width: 2.08 blocks Semi-large: Height: 1.5625 blocks Width: 1.5625 blocks Medium: Height: 1.04 blocks Width: 1.04 blocks Small: Height: 0.52 blocks Width: 0.52 blocks
Spawn	Swamp Mangrove Swamp Slime chunks Trial Chambers: from trial spawners. When an entity with the Oozing effect dies.
Can be leashed	No
Can ride boats	Yes, if small
Can ride minecarts	Yes

Slimes are cube-shaped hostile mobs that spawn deep underground in particular chunks, aboveground in swamps, or when an Oozing-affected entity dies (unless it's a slime). They travel by jumping, chasing after their targets, and usually dealing damage on touch. Slimes spawn in different sizes, and larger ones split into smaller ones on death. Slimes are a major source of slimeballs.

Spawning

Slimes spawn naturally in 3 sizes: small, medium, and large. A fourth size, known as semi-large, only spawns from trial spawners and the oozing mob effect. Slimes have an NBT tag, [Byte] Size, which determines their size. Small, medium, and big slimes have their Size set to 0, 1, and 3 respectively. Using the /summon or /data commands, a slime can be given any Size in the range from 0 to 126 (inclusive).^{[verify for Bedrock Edition]}

A slime needs a space of 2.08×2.08 ×2.08 blocks to spawn, which must be clear of solid and liquid obstructions. When a slime attempts to spawn, the game checks to see if the space requirement is followed. Therefore, small and medium slimes are not able to spawn in 2-block tall areas even though it would normally be enough room for other small mobs. Any block within the space, even a glass pane, can prevent slimes from spawning.

• A button or any block without a collision hitbox can prevent a mob from spawning on the block below it, but does not count as an obstruction. This is because the game looks for an air block above it when trying to spawn a mob.
• In Java Edition, the space is centered on the top face of the block the slime spawns on.
  • It should be noted that a trapdoor is treated like a full-block when the game looks for space to spawn mobs. Therefore, the effective spawning space the slime needs is 3×2.1×3 blocks.
• In Bedrock Edition, the space is centered in the northwest corner of a block. This means the effective spawning region is 2×2×2 blocks.^{[verify for Bedrock Edition]}

The random distribution of slime sizes is affected by regional difficulty: chances range from 33% for each size at the low difficulty to 16% small, 33% medium, and 50% big with higher difficulty.

Slime spawns in:

Category: Monster	Java Edition			Bedrock Edition
Spawn area	Spawn weight	Spawn chance	Group size	Spawn weight	Group size
Bamboo Jungle[spawn 1]	100⁄515	19.42%	4	100	1
Windswept Hills[spawn 1]	100⁄515	19.42%	4	100	1
Meadow[spawn 1]	100⁄515	19.42%	4	100	1
Stony Peaks[spawn 1]	100⁄515	19.42%	4	100	1
Grove[spawn 1]	100⁄515	19.42%	4	100	1
Jungle[spawn 1]	100⁄515	19.42%	4	100	1
Dappled Forest[spawn 1]	100⁄515	19.42%	4	100	1
Wooded Badlands[spawn 1]	100⁄515	19.42%	4	100	1
Stony Shore[spawn 1]	100⁄515	19.42%	4	100	1
Eroded Badlands[spawn 1]	100⁄515	19.42%	4	100	1
Beach[spawn 1]	100⁄515	19.42%	4	100	1
Birch Forest[spawn 1]	100⁄515	19.42%	4	100	1
Sparse Jungle[spawn 1]	100⁄515	19.42%	4	100	1
Flower Forest[spawn 1]	100⁄515	19.42%	4	100	1
Snowy Taiga[spawn 1]	100⁄515	19.42%	4	100	1
Taiga[spawn 1]	100⁄515	19.42%	4	100	1
Lush Caves[spawn 1]	100⁄515	19.42%	4	100	1
Cherry Grove[spawn 1]	100⁄515	19.42%	4	100	1
Snowy Beach[spawn 1]	100⁄515	19.42%	4	100	1
Forest[spawn 1]	100⁄515	19.42%	4	100	1
Badlands[spawn 1]	100⁄515	19.42%	4	100	1
Windswept Gravelly Hills[spawn 1]	100⁄515	19.42%	4	100	1
Windswept Forest[spawn 1]	100⁄515	19.42%	4	100	1
Desert[spawn 1]	100⁄515	19.42%	4	100	1
Dark Forest[spawn 1]	100⁄515	19.42%	4	100	1
Old Growth Spruce Taiga[spawn 1]	100⁄515	19.42%	4	100	1
Old Growth Birch Forest[spawn 1]	100⁄515	19.42%	4	100	1
Pale Garden[spawn 1]	100⁄515	19.42%	4	100	1
Swamp[spawn 2][spawn 3]	100⁄516	19.38%	4	100	1
Mangrove Swamp[spawn 2][spawn 3]	100⁄516	19.38%	4	100	1
Cold Ocean[spawn 1]	100⁄520	19.23%	4	100	1
Ocean[spawn 1]	100⁄520	19.23%	4	100	1
Savanna Plateau[spawn 1]	100⁄520	19.23%	4	100	1
Plains[spawn 1]	100⁄520	19.23%	4	100	1
Ice Caves[spawn 1]	100⁄520	19.23%	4	100	1
Deep Cold Ocean[spawn 1]	100⁄520	19.23%	4	100	1
Lukewarm Ocean[spawn 1]	100⁄520	19.23%	4	100	1
Sunflower Plains[spawn 1]	100⁄520	19.23%	4	100	1
Windswept Savanna[spawn 1]	100⁄520	19.23%	4	100	1
Deep Lukewarm Ocean[spawn 1]	100⁄520	19.23%	4	100	1
Warm Ocean[spawn 1]	100⁄520	19.23%	4	100	1
Deep Ocean[spawn 1]	100⁄520	19.23%	4	100	1
Savanna[spawn 1]	100⁄520	19.23%	4	100	1
Jagged Peaks[spawn 1]	100⁄525	19.05%	4	100	1
Snowy Slopes[spawn 1]	100⁄525	19.05%	4	100	1
Snowy Plains[spawn 1]	100⁄530	18.87%	4	100	1
Frozen Peaks[spawn 1]	100⁄540	18.52%	4	100	1
Old Growth Pine Taiga[spawn 1]	100⁄540	18.52%	4	100	1
Ice Spikes[spawn 1]	100⁄540	18.52%	4	100	1
Frozen River[spawn 1]	100⁄541	18.48%	4	100	1
Frozen Ocean[spawn 1]	100⁄545	18.35%	4	100	1
Deep Frozen Ocean[spawn 1]	100⁄545	18.35%	4	100	1
Dripstone Caves[spawn 1]	100⁄610	16.39%	4	100	1
River[spawn 1]	100⁄615	16.26%	4	100	1
Sulfur Caves[spawn 1]	25⁄315	7.94%	1	100	1
Swamp[spawn 2]	1⁄516	0.19%	1	—	—
Mangrove Swamp[spawn 2]	1⁄516	0.19%	1	—	—

1. ↑ ^{a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az ba} Spawn attempt succeeds only in slime chunks.
2. ↑ ^{a b c d} Slimes are spawned twice, once for slime chunks and once for the surface.‌^{[Java Edition only]}
3. ↑ ^{a b} Slimes are spawned once, for both slime chunks and the surface.‌^{[Bedrock Edition only]}

Swamps

Slimes can spawn in swamps and mangrove swamps between the altitudes of Y=51 and Y=69 (inclusive) when the provided light level is 7 or less. They spawn most often on a full moon, and never on a new moon.

More precisely, the game checks two factors:

1. If the light level is equal to or less than a random integer (from 0 to 7)
2. If the fraction of the moon that is bright is greater than a random number (from 0 to 1)

If these conditions are met and the altitude is acceptable, there is a 50% chance of spawning a slime.

The light level requirement for slime spawning in swamps is different from that of most hostile mobs, which spawn only at light level 0.^[1] This allows slimes in swamps to spawn in dimly-lit areas where most hostile mobs can't, allowing swamp-based slime farms to be built.

Slime chunks

Slimes spawn in the Overworld in slime chunks below the layer of Y=40 in groups of four‌^{[JE only]} or individually,‌^{[BE only]} regardless of the lighting or weather conditions.

About ¹⁄₁₀ of all chunks are generated as slime chunks, but they are not determined randomly. An algorithm is used to determine whether each chunk is a slime chunk. In Java Edition, whether a chunk at a particular set of coordinates becomes a slime chunk is determined by the world's seed. In Bedrock Edition, however, they are generated at the same coordinates in every world.

Java Edition

In Java Edition, slime chunks are determined pseudo-randomly by combining their chunk coordinates with the seed of the world.

This Java code can be used to print a message to the terminal indicating whether one specific chunk is a slime chunk.

import java.util.Random; 

public class CheckSlimechunk {
    
    public static void main(String args[]) {
        // The worldseed from /seed.
		// Only the lowest 48 bits of the worldseed in binary
		// actually affect slime chunk placement.
        long seed = 12345L;
        int chunkX = 12; // Chunk coordinates = floor(block coordinate/16)
        int chunkZ = -3;  // Chunk coordinates = floor(block coordinate/16)
        
        Random rnd = new Random(
		    (
                seed +
                (int) (chunkX * chunkX * 0x4c1906) +
                (int) (chunkX * 0x5ac0db) +
                (int) (chunkZ * chunkZ) * 0x4307a7L +
                (int) (chunkZ * 0x5f24f)
			) ^ 0x3ad8025fL
        );   
        System.out.println(rnd.nextInt(10) == 0);
    }
}

The chunk coordinates and the world seed are combined to make a specific RNG seed to generate a random integer between 0 and 9 (inclusive). If the random integer is 0, then the chunk is a slime chunk. World coordinates can be converted to chunk coordinates by dividing by 16 and then rounding down. The world coordinates and the chunk coordinates are both 32-bit integers (instances of int).

Bedrock Edition

In Bedrock Edition, the algorithm does not depend on the world seed, so the chunks that slimes can naturally spawn in inhabit the same coordinates for every world.^[2]

Trial spawners

Each trial chambers structure has a 25% chance to select slimes as the "small melee" mob for its trial spawners. This means only about 25% of trial chambers contain slime spawners within them.

Slimes from trial spawners spawn in sizes 1 (medium) and 2 (semi-large), unlike slimes that spawn in slime chunks and swamps, which come in sizes 0, 1 and 3 respectively.^[3]

During ominous trials, each ominous trial spawner has a ¹⁄₇ chance to dispense lingering potions of Oozing, which spawn two medium slimes upon an affected entity's death. Any type of ominous trial spawner can dispense Oozing potions, regardless of the mob type it spawns.

Potions

If an entity inflicted with the Oozing effect dies, two medium-sized slimes appear at its death location.

In Java Edition, Oozing only spawns slimes in a 5×5×5 cube up to the maximum entity cramming count (default to 24).

Drops

On death

From a single large slime, a player can expect an experience and slimeball yield of 12–28 and 0–32, respectively. The average yield from a single large slime is usually around 19 experience and 9 Slimeballs.

Large slime

• Spawns two to four medium slimes on death
• 4XP when killed by the player

Medium slime

• Spawns two to four small slimes on death
• 2XP when killed by the player

Small slime

Java Edition:

Item		Quantity / Chance / Average
		Default			Looting I			Looting II			Looting III
	Slimeball[A][B]	0–2	66.67%	1.00	0–3	83.33%	1.50	0–4	91.67%	2.00	0–5	94.44%	2.50
	Slimeball[C]	1	100.00%	1.00	1	100.00%	1.00	1	100.00%	1.00	1	100.00%	1.00

Item		Quantity / Chance / Average
		Default			Looting I			Looting II			Looting III
	Slimeball[A][B]	0–2	2⁄3	1	0–3	5⁄6	3⁄2	0–4	11⁄12	2	0–5	17⁄18	5⁄2
	Slimeball[C]	1	1	1	1	1	1	1	1	1	1	1	1

Item		Amount	Probability
			Default	Looting I	Looting II	Looting III
	Slimeball[A][B]	0	1⁄3 (33.33%)	1⁄6 (16.67%)	1⁄12 (8.33%)	1⁄18 (5.56%)
		1	1⁄3 (33.33%)	1⁄3 (33.33%)	1⁄4 (25.00%)	1⁄6 (16.67%)
		2	1⁄3 (33.33%)	1⁄3 (33.33%)	1⁄3 (33.33%)	5⁄18 (27.78%)
		3	0	1⁄6 (16.67%)	1⁄4 (25.00%)	5⁄18 (27.78%)
		4	0	0	1⁄12 (8.33%)	1⁄6 (16.67%)
		5	0	0	0	1⁄18 (5.56%)
		Average	1 (1.00)	3⁄2 (1.50)	2 (2.00)	5⁄2 (2.50)
	Slimeball[C]	1	1 (100.00%)	1 (100.00%)	1 (100.00%)	1 (100.00%)
		Average	1 (1.00)	1 (1.00)	1 (1.00)	1 (1.00)

Killed		1
Item		Expected Drops
		Default	Looting I	Looting II	Looting III
	Slimeball[A][B]	1.00	1.50	2.00	2.50
	Slimeball[C]	1.00	1.00	1.00	1.00

Bedrock Edition:

Item		Quantity / Chance / Average
		Default			Looting I			Looting II			Looting III
	Slimeball[A][B]	0–2	66.67%	1.00	0–3	66.67%	1.33	0–4	66.67%	1.67	0–5	66.67%	2.00
	Slimeball[C]	1	100.00%	1.00	1	100.00%	1.00	1	100.00%	1.00	1	100.00%	1.00

Item		Quantity / Chance / Average
		Default			Looting I			Looting II			Looting III
	Slimeball[A][B]	0–2	2⁄3	1	0–3	2⁄3	4⁄3	0–4	2⁄3	5⁄3	0–5	2⁄3	2
	Slimeball[C]	1	1	1	1	1	1	1	1	1	1	1	1

Item		Amount	Probability
			Default	Looting I	Looting II	Looting III
	Slimeball[A][B]	0	1⁄3 (33.33%)	1⁄3 (33.33%)	1⁄3 (33.33%)	1⁄3 (33.33%)
		1	1⁄3 (33.33%)	1⁄6 (16.67%)	1⁄12 (8.33%)	1⁄18 (5.56%)
		2	1⁄3 (33.33%)	1⁄3 (33.33%)	1⁄4 (25.00%)	1⁄6 (16.67%)
		3	0	1⁄6 (16.67%)	1⁄4 (25.00%)	2⁄9 (22.22%)
		4	0	0	1⁄12 (8.33%)	1⁄6 (16.67%)
		5	0	0	0	1⁄18 (5.56%)
		Average	1 (1.00)	4⁄3 (1.33)	5⁄3 (1.67)	2 (2.00)
	Slimeball[C]	1	1 (100.00%)	1 (100.00%)	1 (100.00%)	1 (100.00%)
		Average	1 (1.00)	1 (1.00)	1 (1.00)	1 (1.00)

Killed		1
Item		Expected Drops
		Default	Looting I	Looting II	Looting III
	Slimeball[A][B]	1.00	1.33	1.67	2.00
	Slimeball[C]	1.00	1.00	1.00	1.00

1XP when killed by the player

Behavior

Slimes move by hopping, which they do every 10 to 30 ticks (0.5 to 1.5 seconds). They can swim in water and climb ladders and scaffolding. Unlike other mobs, slimes continue moving when no players are nearby. Their exact routine is as follows:

The slime searches for a player (or, failing that, an iron golem) within 16 blocks (spherical) distance.

• If no target is found, the slime waits 10 to 30 ticks (0.5 to 1.5 seconds) between jumps, and changes direction randomly every 40 to 100 ticks (2 to 5 seconds).
• If a target is found, the delay before jumping is ¹⁄₃ as long (3 to 10 ticks), and the slime's direction is set directly toward the target before jumping.

Unlike most mobs, slimes do not pathfind toward their target, always approaching their target in a straight line without avoiding environmental hazards such as lava, cactus or dangerous falls. This means they can easily get stuck in corners or behind walls, not knowing how to circumvent them. This behavior is shared by magma cubes.

A slime's maximum health is equal to its size squared, and its dimensions are calculated by multiplying its size plus one by 0.52 block, so that small slimes are 0.52 block in each direction, and large ones are 2.08 blocks. When a slime attacks, it deals damage equal to its size, except for size 0 (smallest) slimes, which do no damage, and do not prevent sleeping. Because small slimes still have a hostile AI, they continuously try to attack the player.

A slime's jump distance also depends on its size; a slime jumps a distance slightly farther than its length. When landing, a number (8 times the slime's size) of slime particles appear. Regardless of size, slimes always jump 1 block high.

When a slime larger than 0 dies, it spawns 2–4 new slimes equivalent to its size divided by 2, rounding down. A slime that was named with a name tag produces smaller slimes with the same name when it dies.

Slimes continuously damage all players, snow golems,‌^{[Bedrock Edition only]} and iron golems they collide with (although damage immunity reduces the actual damage to 1 attack every half second), unlike other mobs that damage only those targets they specifically attack^[4] and as a result they deal damage about twice as quickly as other mobs.

Slimes in water attempt to swim to the surface if possible. If forced to stay submerged, they eventually drown, splitting into smaller slimes that drown and finally drop slimeballs.

Slimes are immune to Oozing.

Sounds

Java Edition:

Bedrock Edition:

Data values

ID

Java Edition:

Name	Identifier	Entity tags	Translation key
Slime	slime	frog_food no_anger_from_wind_charge non_controlling_rider	entity.minecraft.slime

Bedrock Edition:

Name	Identifier	Numeric ID	Family	Translation key
Slime	slime	37	mob monster slime	entity.slime.name

Entity data

Slimes have entity data associated with them that contains various properties.

Java Edition:

Bedrock Edition:

See Bedrock Edition level format/Entity format.

Achievements

Icon		Achievement	In-game description	Actual requirements (if different)	Gamerscore earned	Trophy type (PS)
PS4	Other
		Monster Hunter	Attack and destroy a monster.	Kill one of these 41 monsters: Blaze Bogged Breeze Camel Husk Cave Spider Creaking (by destroying its creaking heart) Creeper Drowned Elder Guardian Ender Dragon Enderman Endermite Evoker Ghast Guardian Hoglin Husk Magma Cube Parched Phantom Piglin Piglin Brute Pillager Ravager Shulker Silverfish Skeleton Slime Spider Stray Vex Vindicator Witch Wither Wither Skeleton Zoglin Zombie Zombie Horse Zombie Nautilus Zombie Villager Zombified Piglin Other mobs may be killed, but are ignored for this achievement.	15	Bronze
		It Spreads	Kill a mob next to a catalyst	Kill any mob that drops experience near a sculk catalyst, with the sole exception of the ender dragon. Mobs that drop no experience are ignored for this achievement.	10	Bronze

Achievements that apply to all mobs:

Icon		Achievement	In-game description	Actual requirements (if different)	Gamerscore earned	Trophy type (PS)
PS4	Other
		Overkill	Deal nine hearts of damage in a single hit.	Damage can be dealt to any mob, even those that do not have nine hearts of health overall.	30	Bronze
		Over-Overkill	Deal 50 hearts of damage in a single hit using the Mace	Damage can be dealt to any mob, even those that do not have 50 hearts of health overall.	20	Silver
		Mob Kabob	Hit five mobs in the same Charge attack using the Spear	Armor stands and players also count for this achievement as they are technically mobs.	10	Bronze

Advancements

Icon	Advancement	In-game description	Actual requirements (if different)
	Monster Hunter	Kill any hostile monster	Kill one of these 41​[until: Fourth Drop 2026]/42​[upcoming] monsters: Blaze Bogged Breeze Camel Husk Cave Spider Creaking (by destroying its creaking heart) Creeper Drowned Elder Guardian Ender Dragon Enderman Endermite Evoker Frostbite​[upcoming: Fourth Drop 2026] Ghast Guardian Hoglin Husk Magma Cube Parched Phantom Piglin Piglin Brute Pillager Ravager Shulker Silverfish Skeleton Slime Spider Stray Vex Vindicator Witch Wither Wither Skeleton Zoglin Zombie Zombie Horse Zombie Nautilus Zombie Villager Zombified Piglin Other mobs may be killed, but are ignored for this advancement.
	It Spreads	Kill a mob near a Sculk Catalyst	Kill any mob that drops experience near a sculk catalyst, with the sole exception of the ender dragon. Mobs that drop no experience are ignored for this advancement.
	Monsters Hunted	Kill one of every hostile monster	Kill each of these 41​[upcoming: Fourth Drop 2026]/42​[upcoming] monsters: Blaze Bogged Breeze Camel Husk Cave Spider Creaking (by destroying its creaking heart) Creeper Drowned Elder Guardian Ender Dragon Enderman Endermite Evoker Frostbite​[upcoming: Fourth Drop 2026] Ghast Guardian Hoglin Husk Magma Cube Parched Phantom Piglin Piglin Brute Pillager Ravager Shulker Silverfish Skeleton Slime Spider Stray Vex Vindicator Witch Wither Wither Skeleton Zoglin Zombie Zombie Horse Zombie Nautilus Zombie Villager Zombified Piglin Other mobs may be killed, but are ignored for this advancement.

Advancements that apply to all mobs:

Icon	Advancement	In-game description	Actual requirements (if different)
	Adventure	Adventure, exploration and combat	Kill any mob, or be killed by any living entity.
	A Throwaway Joke	Throw a Trident at something. Note: Throwing away your only weapon is not a good idea.	Hit a mob with a thrown trident.
	Take Aim	Shoot something with an Arrow	Using a bow or a crossbow, shoot a mob with an arrow, tipped arrow, or spectral arrow.
	Mob Kabob	Hit five mobs in the same Charge attack using the Spear	Armor Stand and Mannequin also count for this advancement.
	Arbalistic	Kill five unique mobs with one crossbow shot	Armor Stand and Mannequin also count for this advancement. This is a hidden advancement, meaning that it can be viewed by the player only after completing it, regardless of if its child advancement(s), if any, have been completed.
	Over-Overkill	Deal 50 hearts of damage in a single hit using the Mace	Damage can be dealt to any mob, even those that do not have 50 hearts of health overall.

Videos

Note: This video is from 2012. Since then, slimes spawning in swamps has been added to the game.

History

Java Edition

Java Edition Alpha
v1.0.11							Added slimes.
							Slimes are the fifth hostile mob added to the game.
							There are three sizes of slimes: small, medium, and big. Their exact size values in comparison to modern slimes is unknown.
							On death, non-tiny slimes split into smaller slimes only if they are dealt exactly the same damage as their remaining health.
							Small slimes drop 0–2 slimeballs.
							Slimes spawn only below Y=32
v1.0.12							Big and medium slimes no longer spawn in Peaceful.
							Slimes now have sound effects.
							The targeting and attacking of slimes has been fixed.
v1.0.13							The model and texture of slimes has been changed.
							Slimes now spawn only below Y=16.
v1.0.13_01							Big and medium slimes are rarer now, as they have a spawn chance of 1 in 50.
v1.0.14							All sizes of slime now have a 1 in 10 chance to spawn.
							Slime spawning is now tied to slime chunks. For any given chunk there is a 1 in 100 chance of it being a slime chunk.
v1.0.17							Slimes now spawn in multiplayer.
							Slime chunks are more common. For any given chunk there is a 1 in 30 chance of it being a slime chunk.
v1.1.1							Slime chunks are more common. For any given chunk there is a 1 in 10 chance of it being a slime chunk.
v1.2.0							Slime spawning is disabled with the introduction of biomes. The slime mob was not included on the biome mob spawn list.
Java Edition Beta
1.3							Slimes can spawn again.
							Despite a Mojang employee claiming slime spawning was enabled again in Beta 1.2[5], it was actually only enabled in Beta 1.3.
1.4							A multiplayer bug has been fixed where slimes split were visible only to the player that caused them to split and would not take any damage.[6] Because these slimes were client-side, the player could remove them only by exiting and logging back into the server.
1.5							Slimes no longer spawn in Peaceful difficulty and attack only when provoked.
Java Edition
1.0.0			Beta 1.9 Prerelease				Non-tiny slimes now split into smaller slimes when they receive more damage than their remaining health.
			Beta 1.9 Prerelease 5				Slimes now spawn on levels 0–39 rather than 0–16, making them much more common.
1.1			11w49a				Added slime spawn egg, allowing the player to spawn slimes.
1.3.1			12w15a				The slime spawning rate in superflat worlds has been decreased.
			12w22a				Sizes of slimes is no longer sometimes wrong.
			12w23a				Jumping animations of slimes have been fixed.
			12w25a				The slime spawning rate in superflat worlds has been decreased, even more.
1.4.2			12w38a				Slimes now have a new mob sound, the same as magma cubes, to make the sounds more realistic.
			12w40a				Slimes are now easier to find as they spawn in swamp biomes at low light level. Since slimes can't swim, it is quite likely that they jump in deep water and eventually drown.
1.5			13w10a				Slime spawn rates in swamps now depend on the current moon phase.
1.8			14w06a				Slimes can now swim as a result of the update to the new AI.
							Slimes now randomly change direction every so often, reducing the chance of them getting stuck in walls or corners.
							Slimes now randomly despawn over time if no player is within a 32 block range.
							The jumping mechanics of slimes have been changed. The distance they are able to jump corresponds to their size; they jump approximately the same distance as the length they are. They also turn and face their whole body to the player while attacking.
							Huge slimes can now spawn while summoning with a command block.
1.14			18w43a				The texture of slimes has been changed.
			19w08a				Hitbox side length for sizes 0, 1, 3 (small, medium, big) changed from 0.51, 1.02, 2.04 to 0.5202, 1.0404, 2.0808, respectively.
1.16			20w06a				Small slimes now make sounds again when moving.[7]
1.17			21w10a				The maximum size of slimes is now 127.
1.20			23w18a				Slimes are now affected by the Jump Boost effect.[8]
1.20.2			23w33a				The sounds of slimes are now controlled by the "Hostile Creatures" instead of the "Friendly Creatures" sound slider.[9]
1.20.3 Experiment Update 1.21			23w45a				Slimes now spawn in trial chambers behind the "Update 1.21" experimental data pack.
1.20.5			24w03a				Hitbox side length for sizes 0, 1, 3 (small, medium, big) changed from 0.5202, 1.0404, 2.0808 to 0.52, 1.04, 2.08, respectively.
1.20.5 Experiment Update 1.21			24w13a				Two medium size slimes spawn when an entity (except boss mobs and slimes) dies with the Oozing effect.
			pre1				Oozing now spawns slimes in a 5×5×5 volume up to the max entity cramming count.

Bedrock Edition

Pocket Edition Alpha
v0.9.0			build 1				Added slimes and slime spawn eggs.
			build 2				Slimes now have sounds.
							Slimes now spawn naturally.
v0.10.0			build 1				Slimes now have bouncing animations.
v0.12.1			build 1				Slimes now have particles when jumping.
							Slimes now drop slimeballs.
v0.13.0			build 3				The spawning of slimes has been improved.
Bedrock Edition
?							Slimes spawn commonly in flat worlds.
1.10.0			beta 1.10.0.3				The texture of slimes has been changed.
1.16.201							Slimes no longer spawn at ground level on flat worlds.
1.20.60 Experiment Update 1.21			Preview 1.20.60.20				Slimes now spawn in trial chambers behind the "Update 1.21" experimental toggle.
1.21.0 Experiment Update 1.21			Preview 1.21.0.20				When an entity with the Oozing effect dies, two medium size slimes spawn.
1.21.80			Preview 1.21.80.20				A slime named with a name tag now produces smaller slimes with the same name when it dies.

Legacy Console Edition

Legacy Console Edition
Xbox 360	Xbox One	PS3	PS4	PS Vita	Wii U	Switch
TU1	CU1	1.00	1.00	1.00	Patch 1	1.0.1	Added slimes.
TU9							Added slime spawn egg, allowing the player to spawn slimes.
TU14		1.04					The slime spawning rate in superflat worlds has been decreased.
TU19	CU7	1.12	1.12	1.12			Slimes can now spawn in swamps at night.

New Nintendo 3DS Edition

New Nintendo 3DS Edition
0.1.0							Added slimes.

Data history

Issues

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

Trivia

• Because a slime's movement speed is tied to its size, it becomes impossible for the player to outrun a size 8 slime on flat ground without potion effects.
• When a slime searches for nearby targets or checks to see if it should despawn, it checks from a point at the center of its hitbox on the x and z-axis and the bottom of its y-axis. Therefore, a custom-size slime sufficiently huge can be right in front of the player and be completely passive, and it may even despawn if the slime is large enough.
• Green-colored slimes are also present in Minicraft, a 2D Minecraft-inspired game also created by Notch.
• Slimes breaking apart to form smaller, independent slimes resembles the real-life form of asexual reproduction known as fragmentation.
• In Java Edition, slimes can be made bigger than they normally should be using commands.

Gallery

Screenshots

• 
  Small: 0.52 block cube
• 
  Medium: 1.04 block cube
• 
  Big: 2.08 block cube
• 
  Slimes of various sizes underground
• 
  A big slime covering a minecart
• 
  A group of slimes within a Superflat world
• 
  A group of slimes within a village
• 
  A group of slimes within a swamp
• 
  A large slime, with the size number 127
• 
  A size 10 slime compared to an oak tree
• 
  A group of slimes within a cave
• 
  A group of three slimes are led out of a cave onto the surface
• 
  14 small slimes that spawned from a single big slime in a flat world

Mojang screenshots

• 
  A slime within Pocket Edition Alpha
• 
  Slimes in a swamp
• 
  A slime in a photo with a magma cube and sulfur cube

Textures

• 
  Slime texture file

In other media

• 
  Artwork of a slime
• 
  Artwork of a slime used for the 10th anniversary^[10]
• 
  A group of slimes within the promotional artwork for the first Caves & Cliffs update
• 
  A banner of a slime
• 
  Nitwit children kicking around a slime like a ball
• 
  A slime within Minecraft Dungeons
• 
  Prison slimes, a slime variant that can be found within Minecraft Story Mode Season 2
• 
  A Slime Spirit within Super Smash Bros. Ultimate
• 
  A LEGO slime
• 
  An official LEGO Minecraft small slime
• 
  "Frogs", an official T-Shirt design featuring two slimes
• 
  A slime in the Plastic Texture Pack
• 
  Slime in the Halloween Texture Pack

See also

• Magma Cube - A similar mob that spawns only in the Nether and drops magma cream
• Sulfur Cube - A similar mob that spawns in sulfur caves
• Tropical Slime - A variant found in Minecraft Dungeons and in Minecraft Earth
• Prison Slime - A variant found Minecraft: Story Mode Season 2

External links

• "Mob Menagerie: Slime" by Duncan Geere – Minecraft.net, February 6, 2025.

References