A spawner, otherwise known as a monster spawner in Bedrock Edition, is a cage-like block that can spawn mobs. When configured, it contains a miniature, spinning version of the type of mob it spawns.
Spawners cannot be obtained in Survival, even with Silk Touch.
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In Bedrock Edition, a monster spawner can be obtained from creative inventory or by using pick block. It is initially empty and inert, but can be configured to spawn a desired mob by using a spawn egg on the placed block.
In Java Edition, spawners are not found in the creative inventory and are the only block with an item form that cannot be picked with pick block. One can be obtained only by using the /give command, which gives a pig spawner by default; afterward the mob can be changed by using a spawn egg on the placed block.
A /setblock, /clone or /fill command can also be used to obtain a spawner.
If broken with a pickaxe, a spawner drops 15-43 experience. When mined with anything else, it drops nothing.
Block Spawner Hardness 5 Tool Breaking time[A] Default 25 Wooden 3.75 Stone 1.9 Iron 1.25 Diamond 0.95 Netherite 0.85 Golden 0.65
Spawners can generate naturally in the following places:
Dungeons One in the center of the dungeon spawning one of the following mobs with the indicated frequency: zombie (50%), skeleton (25%), or spider (25%). Mineshafts Any number of cave spider spawners, densely surrounded by cobwebs, scattered throughout. Woodland mansions Optionally one spider spawner, densely surrounded by cobwebs, in a rarely generated secret room on the 2nd or 3rd floor. It is sometimes visible through the windows from outside. Strongholds One silverfish spawner in the end portal room. Nether fortresses One or two blaze spawners on fenced platforms with full-block “stairs” leading up to them. Normally two are generated per fortress, but there can be fewer. Bastion remnants Any number of magma cube spawners hanging from chains underneath a bridge in treasure rooms.
The spawner spawns mobs in a 9×3×9 volume (see § Mechanics) around it when the player is within 16 blocks. Suitable spawning locations for the block’s mob type are provided in or around the spawning volume. The spawner attempts to spawn four mobs around it, then waits from 10 to 39.95 seconds before spawning more.
In Peaceful difficulty, spawners still activate but do not spawn monsters in Bedrock Edition. In Java Edition, zombified piglins, magma cubes, and ghasts do not spawn at all and other hostile mobs disappear immediately after spawning.
Although spawners are transparent in their rendering and do not block light, they behave like opaque blocks with respect to their interaction with other blocks and adjacent effects.
In Bedrock Edition, they have a hitbox slightly smaller than a full block and one can, therefore, walk on the edge of a supporting full block directly below the spawner.
A spawner activates when a player comes within a spherical radius of 16 blocks from the center point of the block; i.e. 15.5 blocks from the block itself. While the block is active, it spawns mobs up to 4 blocks away from the spawner horizontally, and up to 1 block away vertically, effectively meaning mobs can spawn in a 9×3×9 volume around the spawner. In Bedrock Edition, the spawning volume is cuboid, extending 4 blocks in each cardinal direction from the sides of the spawner; its cross-section is therefore diamond-shaped. Mobs can spawn anywhere in this range that is suitable, with mobs more likely to spawn closer to the spawner than farther away.
While mobs are spawned at fractional x and z-coordinates (i.e. not aligned to blocks), they are spawned at an integer y-coordinate. Horizontally, a mob can spawn with its center point anywhere within the 8×8 range, but vertically, mobs spawn with their legs at either the same layer as the spawner block, one block above it, or one block below it.
The block attempts to spawn 4 mobs at randomly chosen points within the spawning volume, then wait anywhere from 200 to 799 ticks (10 to 39.95 seconds) before spawning again. As it waits, the mob inside the block spins faster and faster. Except for spawning on a solid block, all of the usual requirements for spawning must be met (not in a solid block, correct light level, etc.), so the spawner often produces fewer than 4 mobs. When it does spawn, it emits a “poof”, and more flame particles temporarily appear around it. If the block fails to spawn any mobs because it did not pick any suitable locations, it repeats this process every tick until it succeeds. It starts waiting for the next cycle after it spawns at least one mob. If, at the time of spawning, 6 or more mobs of the spawner’s type are present within a 9×9×9 volume centered on the spawner block (in Java Edition) or a 16×10×16 volume centered on the lower northwest corner of the spawner block (in Bedrock Edition), the spawner “poofs” without creating any mobs and then waits for the next cycle.
The spawner performs a relaxed version of the ordinary spawning check: the general solid block requirement is removed, but the volume (hitbox of the mob), the light level, and other checks are kept. As a result, for some types of mobs to spawn in the outer planes of the spawning volume, some planes outside the volume may also need to be free of opaque blocks to conform with the mobs’ height, width, or other rules governing their individual spawn volumes. For example, for mobs that are two or more blocks tall such as zombies, skeletons, or blazes to spawn in the top y-layer, the layer above that must contain only air.
Summary of maximum spawn volumes for common spawners Mob type Required Volume Failure rate from 8×4×8 volume[note 1] Verticalalignment Pig[note 2] 8.9 × 2.9 × 8.9 2.531252% Cave Spider 8.7 × 2.5 × 8.7 1.531252% Silverfish 8.3 × 2.7 × 8.3 0.28125% ZombieSkeletonBlaze 8.6 × 3.8 × 8.6 1.125% Spider 9.4 × 2.9 × 9.4 6.125% Magma Cube 10.05× 4.09 × 10.05 ?%
For all of the volumes listed in the table, the horizontal plane is centered on the center of the spawner block. While the spawning volume for pigs is 8.9×2.9×8.9, the requirement of grass blocks that are necessary for pigs to spawn reduces the actual volume in which they successfully spawn to 8.9×1.0×8.9. Other mobs can spawn in mid-air, ignoring general rules about spawning on solid ground.
The spawn conditions do not include biomes for most mobs. As such, spawners can place mobs where they normally wouldn’t generate. For example, a mooshroom spawner can operate in a plains biome as long as there are mycelium blocks within the spawn area because the mooshroom’s spawning code checks only for mycelium. The reason mooshrooms are not actually spawned elsewhere is that the game does not normally try to spawn them in other biomes: only the mushroom field biome has mooshroom on the list of things to spawn.
The way a spawner can be disabled depends on the entity it tries to spawn.
For a spawner that generates mobs that spawn only in dark conditions (light level ≤ 7), a torch placed on any side or top of the spawner is sufficient to disable it for the whole 9x9x3 volume.
For a blaze or silverfish spawner, a light level of 12 is required to prevent spawning. This can be achieved by:
- Laying 9 blocks in the pattern shown on the right using blocks having a luminance value of 15
- Laying a dense 7×7 grid of torches on the spawner’s Y level
- In Bedrock Edition, placing a light source of level 15 on four surfaces
A spawner is also disabled by filling the spawning volume with solid blocks. This is often used to disable magma cube spawners, as magma cubes can spawn in any light level. However, since all magma cubes require the space of a large magma cube in order to spawn, a clever placement of as little as 9 solid blocks a layer above the spawner (see right image) can completely disable it.
Using commands, spawners can be customized:
- They can be made to spawn any kind of entity.
- A single spawner can spawn multiple different entities, chosen at random from a list.
- Properties can be set on the spawned entities.
- Various range and timing properties of the spawner can be changed.
Detailed technical information about custom spawners can be found below.
Spawner can be placed under note blocks to produce “bass drum” sounds.
Spawners cannot be pushed by pistons. They also cannot be pushed nor pulled by sticky pistons.
SoundSubtitlesSourceDescriptionResource locationTranslation keyVolumePitchAttenuationdistancehttps://minecraft.fandom.com/wiki/File:Stone_dig1.ogghttps://minecraft.fandom.com/wiki/File:Stone_dig2.ogghttps://minecraft.fandom.com/wiki/File:Stone_dig3.ogghttps://minecraft.fandom.com/wiki/File:Stone_dig4.oggBlock brokenBlocksOnce the block has pinkarmy.netk1.01.216 pinkarmy.net/wiki/File:Stone_hit1.ogghttps://minecraft.fandom.com/wiki/File:Stone_hit2.ogghttps://minecraft.fandom.com/wiki/File:Stone_hit3.ogghttps://minecraft.fandom.com/wiki/File:Stone_hit4.ogghttps://minecraft.fandom.com/wiki/File:Stone_hit5.ogghttps://minecraft.fandom.com/wiki/File:Stone_hit6.oggNone[sound 1]BlocksFalling on the block with fall pinkarmy.netNone[sound 1]0.51.2516 pinkarmy.net/wiki/File:Stone_hit1.ogghttps://minecraft.fandom.com/wiki/File:Stone_hit2.ogghttps://minecraft.fandom.com/wiki/File:Stone_hit3.ogghttps://minecraft.fandom.com/wiki/File:Stone_hit4.ogghttps://minecraft.fandom.com/wiki/File:Stone_hit5.ogghttps://minecraft.fandom.com/wiki/File:Stone_hit6.oggBlock breakingBlocksWhile the block is in the process of being pinkarmy.net0.250.7516 pinkarmy.net/wiki/File:Stone_dig1.ogghttps://minecraft.fandom.com/wiki/File:Stone_dig2.ogghttps://minecraft.fandom.com/wiki/File:Stone_dig3.ogghttps://minecraft.fandom.com/wiki/File:Stone_dig4.oggBlock placedBlocksWhen the block is pinkarmy.nete1.01.216 pinkarmy.net/wiki/File:Stone_hit1.ogghttps://minecraft.fandom.com/wiki/File:Stone_hit2.ogghttps://minecraft.fandom.com/wiki/File:Stone_hit3.ogghttps://minecraft.fandom.com/wiki/File:Stone_hit4.ogghttps://minecraft.fandom.com/wiki/File:Stone_hit5.ogghttps://minecraft.fandom.com/wiki/File:Stone_hit6.oggFootstepsBlocksWalking on the pinkarmy.netsteps0.151.516
Bedrock Edition: [needs in-game testing]
SoundSourceDescriptionResource locationVolumePitch??Once the block has pinkarmy.netl?1.2 ??Falling on the block with fall pinkarmy.netl?? ??While the block is in the process of being pinkarmy.netl?0.75 ??Jumping from the pinkarmy.netl?? ??Falling on the block without fall pinkarmy.netl?? ??Walking on the pinkarmy.netl?? ??When the block is pinkarmy.netl?1.2
NameResource locationFormTranslation key SpawnerspawnerBlock & pinkarmy.netner NameResource location Block entitymob_spawner
NameResource locationNumeric ID FormTranslation key Monster Spawnermob_spawner52Block & pinkarmy.net NameSavegame ID Block entityMobSpawner
A spawner has a block entity associated with it that holds additional data about the block.
See Bedrock Edition level format/Block entity format.
Java Edition Infdev 20100625-2 Added mob spawners. Mob spawners can be picked up and when placed, spawn pigs. 20100627Mob spawners have been given a unique ID, reducing crashes. Java Edition Alpha v1.0.1Mob spawners can’t be picked up anymore. v1.1.0Removed rotating model inside of the mob spawner due to some multiplayer issues with it. Java Edition Beta 1.2″Mob Spawner” has been renamed to “Monster Spawner”. Monster spawners again show a rotating model inside of what they spawn in singleplayer after being missing for several versions. Java Edition 1.0.0Beta 1.9 Prerelease The texture of monster spawners has been now changed to a darker color. Beta 1.9 Prerelease 3Monster spawners now drop when mined using a tool enchanted with the new Silk Touch enchantment, despite this enchantment not existing until the next snapshot. Added natural silverfish spawners. Beta 1.9 Prerelease 5Squid spawners now work only in a narrow elevation range, from 46 to 62. Monster spawners no longer drop when broken using a tool enchanted with Silk Touch. Beta 1.9 Prerelease 6Monster spawners now take much shorter to destroy, and the breaking time is tier dependent. 1.2.112w06aMonster spawners now show the mob they are spawning in multiplayer; previously they would always show a pig. 1.3.112w21aPick block no longer works on monster spawners. 12w22aMonster spawners now drop experience when destroyed. 12w26aMonster spawners now support extra data pertaining to what they spawn. 1.814w18aSpawners with numerical metadata variants 1 through 15, which are inaccessible through normal gameplay, now have a missing texture rather than appearing identical to spawners. 14w26aBlock metadata has been completely removed from this snapshot onwards with the introduction of block states. As this block never used block metadata at all prior to this version, fifteen unused, inaccessible metadata variants of it have been completely removed from the game: DV Description 0 Spawner 1-15 Inaccessible “boring” variants of spawners 14w26cThe horizontal spawning range of monster spawners is now calculated from the center of the block rather than the northwest corner. The exclusion zone of monster spawners has been reduced: for a default spawner, the 6 mobs must be in a 9×9×9 region rather than 17×9×17 to prevent spawning. 14w28bThe type of mob spawned from a monster spawner can now be changed by using a spawn egg on it. 1.916w02aA monster spawner containing a large mob now scales down the mob to fit inside the spawner block. 1.1116w32aThe block entity ID has been changed from MobSpawner to mob_spawner. 16w39aSpider monster spawners now generate in woodland mansions. 1.1317w47a”Monster Spawner” has been renamed to simply “Spawner”. Prior to The Flattening, this block’s numeral ID was 52. pre5The ID of spawners has been changed to spawner. 1.1418w43a The texture of spawners has been changed. 1.1620w16aMagma cube spawners now generate in bastion remnants. Upcoming Java Edition 1.18experimental snapshot 2Zombie, skeleton, spider, and cave spider spawners now require a light level of 12 to prevent spawning. Pocket Edition Alpha v0.9.0build 1 Added monster spawners. build 2Added monster spawners to the creative inventory. The type of mob spawned can now be changed using a spawn egg. build 9Monster spawners now emit light. v0.12.1build 1Blaze spawners now generate in nether fortresses. Monster spawners now drop experience when mined using a pickaxe. Pocket Edition 1.1.0alpha 126.96.36.199Spider monster spawners now generate in woodland mansions. Bedrock Edition 1.10.0beta 188.8.131.52 The texture of monster spawners has been changed. 1.16.0beta 184.108.40.206Magma cube spawners now generate in bastion remnants. Upcoming Bedrock Edition 1.17.30beta 220.127.116.11Spawners no longer emit light. Legacy Console Edition TU1CU1 1.0 Patch 11.0.1 Added monster spawners. TU5 The texture of monster spawners has been changed. TU31CU19 1.22 Patch 3The type of mob spawned from a monster spawner can now be changed by using a spawn egg. TU69 1.76 Patch 38Monster spawners are now available in the creative inventory, and can be obtained with pick block. 1.90 The texture of monster spawners has been changed.
Issues relating to “Spawner” are maintained on the bug tracker. Report issues there.
- Any spawner placed in Java Edition defaults as a pig spawner.
- A player-created spawner containing zombies can never spawn a Zombie Villager.[more information needed]
- In Java Edition, spawners containing zombies have a small chance to spawn a chicken jockey.
- There are no such thing as iron golem spawners or snow golem spawners.
- Spawners containing zombies or skeletons have a chance for the mob spinning inside to have armor.
- Spawners containing spiders have a small chance to spawn a spider jockey.
- Spawners containing Pillagers have a small chance for the mob spinning inside to be a Raid captain in Java Edition.
- Spawners in mushroom fields, mushroom field shore, or the Void biome can function normally, despite those biomes having no hostile mobs spawn naturally.
- Spawners are the only block that can be legitimately obtained as an item, but not obtainable from either Creative mode or pick block.[Java Edition only]
- It is possible for a pig spawner to generate naturally. If a newer world is loaded in an older version of minecraft, the spawner can lose its metadata, causing it to enter its default state, which is pig. Alternatively, if a buried treasure chest generates next to a spawner, it duplicates the spawner without duplicating the NBT tag, resulting in a natural pig spawner. The chest also gets invalid block(spawner)data, making it unopenable.
- If a dungeon spawner overwrites a dungeon chest during world generation, the spawner does not spawn any mobs. It appears as a pig spawner, but placing a hopper underneath it reveals the contents of the chest that should have been there.
- Minecart with Spawner
- Spawner traps