Slime Block

Slime Block

Renewable	Yes
Stackable	Yes (64)
Tool	Any tool
Blast resistance	0
Hardness	0
Luminous	No
Transparent	JE: Partial BE: Yes
Flammable	No
Catches fire from lava	No
Map color (Java)	1 GRASS

{
    "title": "Slime Block",
    "rows": [
        {
            "field": "Yes",
            "label": "(link to Renewable resource article, displayed as Renewable)"
        },
        {
            "field": "Yes (64)",
            "label": "Stackable"
        },
        {
            "field": "Any tool",
            "label": "Tool"
        },
        {
            "field": "0",
            "label": "(link to Explosion#Blast resistance article, displayed as Blast resistance)"
        },
        {
            "field": "0",
            "label": "(link to Breaking#Blocks by hardness article, displayed as Hardness)"
        },
        {
            "field": "No",
            "label": "(link to Light article, displayed as Luminous)"
        },
        {
            "field": "'''(link to JE article, displayed as JE)''': Partial\n<br>'''(link to BE article, displayed as BE)''': Yes",
            "label": "(link to Opacity article, displayed as Transparent)"
        },
        {
            "field": "No",
            "label": "(link to Flammable article, displayed as Flammable)"
        },
        {
            "field": "No",
            "label": "Catches fire from (link to lava article, displayed as lava)"
        },
        {
            "field": "<span style=\"display: inline-block; white-space: nowrap;\"><span style=\"display: inline-block; background-color:  rgb(127, 178, 56)\n; border: 1px solid #888; border-radius: 0.3em; width: 1em; height: 1em; vertical-align: -0.4em; margin-right: -0.1em\"><br></span>  1 GRASS\n</span>",
            "label": "(link to Map color article, displayed as Map color) <small>((link to Java Edition article, displayed as Java))</small>"
        }
    ],
    "invimages": [
        "Slime Block"
    ],
    "images": [
        "Slime Block.png"
    ]
}

A slime block is a storage block equivalent to nine slimeballs. It has both sticky and bouncy properties making it useful in conjunction with pistons to move both blocks and entities.

Obtaining

Breaking

Slime blocks can be broken instantly, regardless of held items, or when under the Mining Fatigue effect.

Block	Slime Block
Hardness	0
Breaking time (secs)
Default	0.05

Legend

• drops nothing
• drops something other than the block itself
• drops the block itself
• italicized can be instant mined

Crafting

Ingredients	[hide]Crafting recipe
Slimeball

Usage

Landing on a slime block does not cause fall damage regardless of whether the player is sneaking.‌

Slime blocks are also slightly slippery, but less so than ice.

Slime blocks cause movement on top of them to slow down.

Bouncing

A player or mob that falls onto the top of a slime block bounces to a height proportional to the falling velocity. The bounce height quickly deteriorates. For example, a fall of 255 blocks produces a bounce height of about 50 blocks, while a fall of 50 blocks results in a bounce height of 22 blocks. The maximum bounce height is 57.625 blocks. Entities hitting the side of a slime block do not bounce, unless the slime block is moving using a piston.

A player holding sneak takes no fall damage and does not bounce at all.

Placing carpets, rails, trapdoors, redstone repeaters or redstone comparators on a slime block does not stop mobs from bouncing and not taking fall damage. Likewise, placing a pressure plate on a slime block does not stop mobs from bouncing, but the pressure plate still activates. Half-blocks such as cakes and slabs stop the bouncing effect.

Most mobs bounce off slime blocks. Exceptions are chickens, ghasts, bats, phantoms, bees, parrots, and vexes. Occasionally a horse may get stuck on a block when a player tries to spawn it on top of a slime block in Creative mode.

Items, falling blocks, minecarts and boats do not bounce on slime blocks. Particles, however, do bounce. Players can also get around the fact that falling blocks, minecarts, and boats don't bounce by having sticky pistons with slime blocks bounce them.

Pistons

A				B

Piston A can extend because the slime block ignores the adjacent obsidian. Piston B cannot extend because the diamond block is prevented from moving by the obsidian and so the slime block also refuses to move.

A self-propelled aircraft engine. Place the top block of redstone and sticky piston last.

When being pushed by a piston, entities (except ender dragons, item frames and paintings) that are ahead are launched into the direction the block is pushed into, at an initial speed of 20 blocks a second. When pulled by a piston, no entities are launched.

When a slime block is pushed or pulled by a piston, it attempts to move all adjacent blocks in the same direction. The types of blocks that can be moved are the same as those that can be pulled by a sticky piston. Blocks that cannot be pulled by a sticky piston (i.e. all the blocks listed on the table on the pistons page) stay in place. The blocks that are moved may in turn push other blocks. For example, a slime block sitting on the ground attempts to move the ground block underneath itself, which pushes additional ground blocks in the direction of motion just as if it were being pushed directly by a piston.

Blocks such as glazed terracotta and honey blocks are exceptions; they do not move when adjacent slime blocks are moved, even if they are normally pushable by a piston.

When the adjacent block that is moved is also a slime block, that block attempts to move all its adjacent blocks. For example, a 2×2×2 cube of slime blocks may be pushed or pulled as a unit by a single piston acting on any of the blocks in the cube and attempts to move all blocks adjacent to the cube.

A slime block adjacent to a block that cannot be moved by pistons ignores the immobile block. However, if an adjacent block could be moved but is prevented by the presence of an immobile block, the slime block is also prevented from moving. This includes slime blocks being pulled rather than pushed, in which case the piston retracts without pulling anything. Liquids are an exception: they aren't moved, but neither do they stop a piston from pushing or pulling blocks into their space (usually destroying the liquid, and in a rare case displacing it through the piston).

Slime blocks are not pulled by a non-sticky piston, nor are they moved if an adjacent (non-slime) block is moved by a piston.

The maximum of 12 blocks moved by a piston still applies. For example, a 2×2×3 of slime blocks may be pushed or pulled by a sticky piston as long as no other movable blocks are adjacent to it.

A piston cannot move itself via a "loop" constructed of slime blocks, but self-propelled contraptions can be created with multiple pistons.

Crafting ingredient

Name	Ingredients	[hide]Crafting recipe
Slimeball	Slime Block	9

Brewing ingredient

Name	Ingredients	[hide]Brewing recipe
Mundane Potion	Slime Block + Water Bottle
Potion of Oozing	Slime Block + Awkward Potion

Sounds

Java Edition:

[hide] v t e slime_block sound type
Sound	Subtitles	Source	Description	Resource location	Translation key	Volume	Pitch	Attenuation distance
	​Block broken	Blocks	Once the block has broken	block.slime_block.break	subtitles.block.generic.break​	1.0	0.8	16
	​Block placed	Blocks	When the block is placed	block.slime_block.place	subtitles.block.generic.place​	1.0	0.8	16
	​Block breaking	Blocks	While the block is in the process of being broken	block.slime_block.hit	subtitles.block.generic.hit​	0.25	0.5	16
	​Something falls on a block	Entity-Dependent	Falling on the block with fall damage	block.slime_block.fall	subtitles.block.generic.fall​	0.5	0.75	16
	​Footsteps	Entity-Dependent	Walking on the block	block.slime_block.step	subtitles.block.generic.footsteps​	0.15	1.0	16

Bedrock Edition:

[hide] v t e slime sound type
Sound	Source	Description	Resource location	Volume	Pitch
	Hostile Creatures	Once the block has broken	mob.slime.big	1.0	0.8-1.0
	Hostile Creatures	When the block is placed	mob.slime.big	1.0	0.8-1.0
	Blocks	While the block is in the process of being broken	hit.slime	0.25	0.5
	Players	Falling on the block with fall damage	fall.slime	0.4	1.0
	Players	Walking on the block	step.slime	0.3	1.0
	Blocks	Jumping from the block	jump.slime	0.12	1.0
	Blocks	Falling on the block without fall damage	land.slime	0.22	1.0

Data values

ID

Java Edition:

Name	Identifier	Form	[hide]Translation key
Slime Block	slime_block	Block & Item	block.minecraft.slime_block

Bedrock Edition:

Name	Identifier	Numeric ID	Form	Item ID	[hide]Translation key
Slime Block	slime	165	Block & Giveable Item	Identical	tile.slime.name

Achievements

[hide]
Icon		Achievement	In-game description	Actual requirements (if different)	Gamerscore earned	Trophy type (PS)
PS4	Other
		Trampoline	Bounce 30 blocks upward off a slime block.	—	15	Bronze

History

[hide]Java Edition
1.8			December 20, 2013				Jeb posts the first image of the slime block. At this stage, slime blocks are known as "Bouncy Blocks".
			14w02a				Added slime blocks.
			14w18a				Slime blocks can now move adjacent blocks when moved by pistons.
							Slime blocks pushed upward by a piston now launch entities vertically into the air.
			14w18b				Sneaking now prevents players from bouncing on slime blocks and results in players taking fall damage when landing on them.
			14w19a				Slime blocks can now push entities sideways and downward when attached to a piston.
			14w25a				The texture of the inside block originally used the 10×10 center of the 16×16 slime.png file, however, since the addition of explicit texture referencing in block models in this snapshot, the center 10×10 section now has its own texture, due to limitations of the custom models not being able to access non-square texture files. However this change did not affect the actual appearance.
			14w32c				The breaking/placing sound of slime blocks has been changed to the hurt sound of slimes.
1.12			17w16a				Slime blocks no longer pull glazed terracotta attached to its side when pulled by sticky pistons.
			pre3				Slime blocks no longer pull glazed terracotta attached on any side, moved by any type of piston.
1.14			18w43a				The texture of slime blocks has been changed.
1.15			19w42a				Slime blocks no longer stick to honey blocks when pushed by pistons.
1.17			21w08a				Slime blocks have been moved to the redstone tab of the Creative inventory.
1.20			23w12a				The inventory icon of the slime block has been changed from to .
			23w18a				Entities landing on the edge of a slime block now properly bounces without taking fall damage.
1.20.5 Experiment Update 1.21			24w13a				Slime blocks are now used as a brewing ingredient for the potion of oozing after combining it with an awkward potion.
1.21.2			24w33a				Bounce effect of slime blocks can no longer be overwritten by jumping in the moment when hitting the ground.
			pre2				Slime blocks now cancel fall damage when sneaking.
[hide]Pocket Edition Alpha
v0.14.0			build 1				Added slime blocks.
[hide]Bedrock Edition
1.10.0			beta 1.10.0.3				The texture of slime blocks has been changed.
1.14.0			beta 1.14.0.2				The texture of slime blocks has been changed to match Java Edition's texture.
							Slime blocks no longer stick to honey blocks when pushed by pistons.
1.21.0 Experiment Update 1.21			Preview 1.21.0.20				Slime blocks are now used as a brewing ingredient for the potion of oozing after combining it with an awkward potion.
1.21.50			Preview 1.21.50.26				Slime blocks now cancel fall damage when sneaking.
[hide]Legacy Console Edition
Xbox 360	Xbox One	PS3	PS4	PS Vita	Wii U	Switch
TU31	CU19	1.22	1.22	1.22	Patch 3	1.0.1	Added slime blocks.
							Slime blocks are a lot more see-through on this edition.
TU54	CU44	1.52	1.52	1.52	Patch 24	1.0.4	Glazed terracotta no longer sticks to moving slime blocks.
			1.90				The texture of slime blocks has been changed.
[hide]New Nintendo 3DS Edition
0.1.0							Added slime blocks.

Data history

[hide]Java Edition
1.13			17w47a				The ID has been changed from slime to slime_block.
							Prior to The Flattening, this block's numeral ID was 165.

Issues

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

Trivia

• A minecart leaving a rail onto a slime block can continue on a rail on the opposite side if it has sufficient momentum leaving the initial rail.
• Slime blocks under soul sand make the player move slower than if the player was just walking on soul sand. This is also apparent with ice.
• Entities launched upward by a slime block on top of a piston achieve slightly more than 6.4 blocks of lift, including the lift from the piston. Entities launched sideways across normal blocks or air are moved 3.510 blocks in the direction of the launch.
• While falling, placing a slime block while just before impact prevents all fall damage.
• Slime blocks are invisible if seen from the clouds.
• Players walking on slime blocks move at 1.359 m/s, a speed reduction of around 70% from the normal walking speed.

Gallery

Screenshots

• 

  A zombie bouncing on a slime block.

• 

  An image showcasing a slime block posted by Jeb.

• 

  The 14w02a banner showing slime blocks in a slime shape. Obsidian is used for the eyes and the mouth.

• 

  Testing of bounce heights. X axis is the start height in half blocks. Y axis is the return height in half blocks. Red line at the top is maximum possible bounce height in half blocks.

In other media

• 

  Crafting a slime block in Minecraft: Story Mode.

External links

• Block of the Week: Slime – Minecraft.net on March 10, 2017