Slime Block

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Slime Block
Slime Block JE2 BE3.png
Renewable

Yes

Stackable

Yes (64)

Tool

Any tool

Blast resistance

0

Hardness

0

Luminant

No

Transparent

Partial[a]

Flammable

No

Catches fire from lava

No

A slime block is a transparent block that entities can bounce on. It is also used alongside pistons to move several connected blocks at once.

Obtaining[edit]

Breaking[edit]

Slime blocks can be broken instantly, regardless of held items.

Block Slime Block
Hardness 0
Breaking time
Default 0.05

Crafting[edit]

Ingredients Crafting recipe
Slimeball

Usage[edit]

Landing on a slime block does not cause fall damage unless 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[edit]

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 the jump key performs a normal jump on contact with the slime block without taking fall damage. A player holding sneak does not bounce at all, and takes fall damage. Landing on the edge of a slime block that is bordered by anything (including air) other than another slime block is treated like landing on a solid block, receiving fall damage and not bouncing.

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. Cake, slabs, and other half-blocks stop the bouncing effect.

Most mobs bounce off slime blocks except for chickens, ghasts and bats. 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 sand/gravel, minecarts and boats do not bounce on slime blocks. Particles, however, do bounce. You can also get around the fact that falling blocks and minecarts and boats don't bounce by having sticky pistons with slime blocks bounce them.

Pistons[edit]

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. 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 push additional ground blocks in the direction of motion just as if it were being pushed directly by a piston.

Glazed terracotta and honey blocks are exceptions; they do not move when adjacent slime blocks are moved.

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.

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 "hook" constructed of slime blocks, but self-propelled contraptions can be created with multiple pistons.

Crafting ingredient[edit]

Name Ingredients Crafting recipe
Slimeball Slime Block

Sounds[edit]

Java Edition:

SoundSubtitleSourceDescriptionNamespaced IDTranslation keyVolumePitchAttenuation distance
Block brokenBlocksBreaking the blockblock.slime_block.breaksubtitles.block.generic.break1.00.816
None[1]BlocksFalling on the block with fall damageblock.slime_block.fallNone0.50.7516
Block breakingBlocksMining the blockblock.slime_block.hitsubtitles.block.generic.hit0.250.516
Block placedBlocksPlacing the blockblock.slime_block.placesubtitles.block.generic.place1.00.816
FootstepsBlocksWalking on the blockblock.slime_block.stepsubtitles.block.generic.footsteps0.151.016

Data values[edit]

ID[edit]

Java Edition:

NameNamespaced IDTranslation key
Slime Blockslime_block block.minecraft.slime_block

Bedrock Edition:

NameNamespaced IDNumeric ID Translation key
Slime Blockslime 165tile.slime.name

Achievements[edit]

Icon Achievement In-game description Actual requirements (if different) Gamerscore earned Trophy type (PS)
TrampolineBounce 30 blocks upward off a slime block.15GBronze

History[edit]

Java Edition
1.8December 20, 2013Jeb posts the first image of the slime block. At this stage, slime blocks are known as "Bouncy Blocks".
14w02aSlime Block JE1.png Added slime blocks.
14w18aSlime blocks can now move adjacent blocks when moved by pistons.
Slime blocks pushed upward by a piston now launch entities vertically into the air.
14w19aSlime blocks can now push entities sideways and downward when attached to a piston.
14w25aThe 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.
14w32cThe breaking/placing sound of slime blocks has been changed to the hurt sound of slimes.
1.1217w16aSlime blocks no longer pull glazed terracotta attached to its side when pulled by sticky pistons.
pre3Slime blocks no longer pull glazed terracotta attached on any side, moved by any type of piston.
1.1317w47aThe ID has been changed from slime to slime_block.
Prior to The Flattening, this block's numeral ID was 165.
1.1418w43aSlime Block JE2 BE3.png The texture of slime blocks has been changed.
1.1519w42aSlime blocks no longer stick to honey blocks when pushed by pistons.
Pocket Edition Alpha
0.14.0build 1Slime Block BE1.png Added slime blocks.
Bedrock Edition
1.10.0beta 1.10.0.3Slime Block BE2.png The texture of slime blocks has been changed.
1.14.0beta 1.14.0.2Slime Block JE2 BE3.png 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.
Legacy Console Edition
TU31CU191.22Patch 31.0.1Slime Block JE1.png Added slime blocks.
?Slime Block LCE.png Slime blocks are a lot more see-through on this edition.
1.90Slime Block JE2 BE3.png The texture of slime blocks has been changed.
New Nintendo 3DS Edition
0.1.0Slime Block JE1.png Added slime blocks.

Issues[edit]

Issues relating to "Slime Block" are maintained on the bug tracker. Report issues there.

Trivia[edit]

  • Translucent blocks (blocks with two different transparencies), such as slime blocks, are now able to be implemented due to a new rendering system.[2]
  • 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.
  • Rabbits do not jump while on a slime block.
  • 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[edit]

Notes[edit]

  1. Does not block light, but conducts redstone signals and mob spawning is possible.

References[edit]