Monster Spawner


Obtaining

Spawners cannot be obtained in survival mode, even if Silk Touch "Flame" redirects here. For the non-solid damage-dealing block, see Fire. “ How does enchanting work in Minecraft? Well, you open a magical book and pick a random spell, not quite sure knowing what it will minecraft is used. Be that as it may, if mined without a pickaxe, the mining will be slower and the spawner will not drop any experience.

Block
Monster Spawner
Hardness 5
Tool
Breaking "Punch" redirects here. For the enchantment, see Enchanting#Punch. The Player punches trees and gets wood (click to view animation). Breaking, digging, punching, or mining is one of the most fundamental activities in Minecraft, performed (by minecraft time
Hand 25
Wooden 3.75
Stone 1.9
Iron 1.25
Diamond 0.95
Golden 0.65
  1. ⃢₆ₑ Times are for unenchanted tools in seconds.

It is also not in the Creative inventory "GUI" redirects here. For items like health bars and crosshairs, see Heads-up display. Inventory pop up screen A filled and sorted inventory Chest inventory The inventory is the pop-up menu that the player uses to minecraft (except in Pocket Edition), and pick block will not work on it, and as such must be obtained using /give. Be that as it may, unlike many other blocks, it is still available as an item when obtained through such commands.

Info

Monster Spawner
Monster Spawner.gif

Type

Solid Block

Requirements

None

Physics

No

Transparency When leaves are opaque (in "fast" graphics), they completely block rendering. When leaves are transparent (in "fancy" graphics), the world behind them is also rendered. Opacity (and its inverse, transparency) are properties of blocks with minecraft

Partial (doesn`t block light)

Luminance Light (or lighting) in Minecraft affects visibility, mob spawning, and plant growth. Contents 1 Brightness 1.1 Spread 2 Sources of light 2.1 Blocks 2.2 Other 3 Light-filtering blocks 4 Effects of light 4.1 Mobs 4.2 minecraft

No (Small amount of light for Pocket Edition)

Blast resistance

25

Hardness

5

Tool


Renewable A renewable resource (as opposed to a non-renewable, or finite, resource) is a resource that can be recreated indefinitely in survival without exploiting glitches or using commands. While running out of resources isn t likely to minecraft

No

Stackable

Yes (64)

Flammable

No

First appearances

See History

Experience Experience First appearances See History Internal ID PC: 2 PE: 69 Network ID PC: none Entity ID xp_orb XP bar visible above hotbar. Experience (EXP or XP for short) can be obtained by gathering experience minecraft

Mined: 15–43

Drops See the items that drop from entities and blocks. For drops as in falls, see Fall Damage. Typical drops from a skeleton: experience orbs, an arrow, and bones. Drops are items that minecraft

None

Block entity id

mob_spawner

Data value

dec:52 hex:34 bin:110100

Name See values from the latest PCPersonal Computer version of Minecraft. For values from Classic, see Data values/Classic. For values from Indev, see Data values/Indev. For values from the Pocket Edition, see Pocket Edition minecraft

mob_spawner

Monster spawners are blocks Blocks may refer to: Block - cubes that make up the Minecraft world as a whole. Blocks music disc This disambiguation page lists articles associated with the same title. If an internal link led you that can spawn mobs "Monster" redirects here. For the mob called "monster" in the code, see Human. Mobs are living, moving game entities. The term "mob" is short for "mobile". 1] Contents 1 Spawning 2 Behavior 3 List of minecraft .

Videos

Trivia

  • Spawners containing zombies or skeletons have a chance for the mob spinning inside to have armor.
  • Spawners in Mushroom Island or Mushroom Island Shore biome can function normally, despite those biomes having no hostile mobs spawn naturally.

Natural generation

Spawners can generate naturally in these places, spawning mobs chosen randomly when generated:

Dungeons Dungeon Biome Any Consists of Cobblestone Moss Stone Monster Spawner Chest Can generate post-generation No First appearances See history Dungeons are naturally generated structures that appear in the Overworld. Contents 1 Generation 2 Structure 2.1 minecraft
It may be a zombie Zombie Health points 20 () Armor points 2 () Attack strength Easy: 2 () Normal: 3 () Hard: 4 () Size Adult: Height: 1.95 Blocks Width: 0.6 Blocks Baby: Height: 0.975 Blocks Width: 0.3 Blocks Spawn minecraft spawner (50% chance), skeleton Skeleton Health points 20 () Attack strength Bow: Easy: 1 () - 4 () Normal: 1 () - 4 () Hard: 1 () - 5 () Sword: Easy: 2 () Normal: 2 () Hard: 3 minecraft spawner (25%), or spider spawner (25%).
Abandoned mineshafts Abandoned mineshaft Biome Any Consists of Wooden Planks Fence Rail Torch Cobweb Dirt Monster Spawner Minecart with Chest Can generate post-generation No First appearances See history "Mine" redirects here. For information about mining, see Mining. minecraft
Cave spider Cave Spider Health points 12 () Attack strength Easy: 2 () Normal: 2 () Hard: 3 () Venom: 1 () per 1.25 sec Hard: for 15 sec () Normal: for 7 sec () Size Height: minecraft spawner heavily surrounded by cobwebs Cobweb Transparency Partial (diffuses sky light) Luminance No Blast resistance 20 Tools Renewable No Stackable Yes (64) Flammable No Drops String (1) Data value dec: 30 hex: 1E bin: 11110 Name web Cobwebs are blocks that slow down minecraft .
Woodland mansions Woodland mansion Biome Roofed Forest Consists of See Structure. Can generate post-generation N/A First appearances See history This article may need cleanup to comply with the style guide. Please help improve this if you can. minecraft
Spider Spider Health points 16 () Attack strength Easy: 2 () Normal: 2 () Hard: 3 () Size Height: 0.9 Blocks Width: 1.4 Blocks Spawn Light level of 7 or less, 3×3×2 space on solid blocks minecraft spawner heavily surrounded by cobwebs Cobweb Transparency Partial (diffuses sky light) Luminance No Blast resistance 20 Tools Renewable No Stackable Yes (64) Flammable No Drops String (1) Data value dec: 30 hex: 1E bin: 11110 Name web Cobwebs are blocks that slow down minecraft in a rarely generated secret room.
Strongholds Stronghold Portal Room Biome Any Consists of See Structure First appearances See History Strongholds are structures that occur naturally underground, and are primarily important because they house end portals. Strongholds can be located using eyes minecraft
Silverfish Silverfish Health points 8 () Attack strength 1 () Size Height: 0.3 Blocks Width: 0.4 Blocks Spawn After mining monster eggs or from spawners in strongholds. First appearances See History Drops None Experience 5 Sounds minecraft spawner. Located in the end portal End Portal Room Biome Any Overworld biome Consists of Mossy Stone Bricks Cracked Stone Bricks Stone Bricks Stone Brick Stairs Iron Bars Lava Silverfish spawner End Portal Frame End Portal Can generate post-generation No First minecraft room. One per stronghold.
Nether fortresses Nether Fortress Biome The Nether Consists of See Structure First appearances See history Nether fortresses are structures that are naturally generated in the Nether. Contents 1 Generation 1.1 Mobs 2 Structure 2.1 Blocks 3 Loot minecraft
Blaze Blaze Health points 20 () Attack strength Fireball: 5 () Contact: Easy: 4 () Normal: 6 () Hard: 9 () Size Height: 1.8 Blocks Width: 0.6 Blocks Spawn Nether Fortresses, light level of 11 or minecraft spawner. Located on nether fortress balconies with stairs Stairs Transparency Partial (blocks light) Luminance No Blast resistance Wood: 15 Stone: 30 Sandstone, Quartz, Red Sandstone: 4 Tools Renewable Cobblestone, Stone Brick, Wood, Purpur: Yes All others: No Stackable Yes (64) Flammable Wood: Yes minecraft leading up to them. Normally two per fortress.

Usage

The monster spawner spawns mobs in an 8*8*3 area around it when the player is within 16 blocks of the spawner, provided suitable spawning locations for the block`s mob type can be found in the area. The block will attempt to spawn 4 mobs around it, then wait from 10 to 39.95 seconds before spawning again.

When obtained as an item and placed, it will spawn pigs by default in the computer edition Minecraft Author(s) Mojang AB (Credits) Markus "Notch" Persson (Creator) Jens "Jeb" Bergensten (Lead Developer) Jon "jonkagstrom" Kågström (AI Programmer) Nathan "Dinnerbone" Adams Erik "Grum" Broes Michael "Searge" Stoyke Thomas "ProfMobius" Guimbretière Agnes "LadyAgnes" Larsson Maria minecraft , or will appear empty in Pocket Edition Pocket Edition Author(s) Mojang AB Jens Bergensten Aron Nieminen Daniel Kaplan Tommaso Checchi Shoghi Cervantes Jason Major Daniel Wustenhoff Tomas Alaeus Mikael "Slicedlime" Hedberg @@@#@@@Microsoft(microsoft.com)###@### Studios 1] Platform(s) Written in C++ 2] Latest version 1.1.2 minecraft .

The spawned mob can be changed by using a spawn egg Spawn Egg Type Items Durability N/A Renewable No Stackable Yes (64) Yes (16) (Console Edition) First appearances See History Data value dec: 383 hex: 17F bin: 101111111 Name spawn_egg “ You know what would be fun? If every minecraft on the spawner.

In Peaceful Mobs in full armor are a common sight in higher difficulty levels. Difficulty is an option in Minecraft that has a direct impact on the ease of gameplay. Contents 1 World setting 1.1 Peaceful 1.2 minecraft difficulty, monster spawner blocks will still appear and work, but any spawned hostile "Monster" redirects here. For the mob called "monster" in the code, see Human. Mobs are living, moving game entities. The term "mob" is short for "mobile". 1] Contents 1 Spawning 2 Behavior 3 List of minecraft mobs will disappear the instant they spawn. Zombie pigmen Zombie Pigman Health points 20 () Armor points 2 () Attack strength Easy: 5 () Normal: 9 () Hard: 13 () Size Height: 1.95 Blocks Width: 0.6 Blocks Spawn Any 2 block high space in any minecraft , magma cubes Magma Cube Health points Big: 16 () Small: 4 () Tiny: 1 () Armor points Big: 12 () Small: 6 () Tiny: 3 () Attack strength Big: 6 () Small: 4 () Tiny: 3 () Size Big: Height: minecraft , and ghasts Ghast Health points 10 () Attack strength Impact: 6 () Explosion: varies by proximity, maximum: Easy: 9 () Normal: 17 () Hard: 25 ( × 12.5) Size Height: 4.0 Blocks Width: 4.0 Blocks Spawn The minecraft will not spawn at all.

Monster spawners are transparent When leaves are opaque (in "fast" graphics), they completely block rendering. When leaves are transparent (in "fancy" graphics), the world behind them is also rendered. Opacity (and its inverse, transparency) are properties of blocks with minecraft in their rendering only - unlike most other transparent blocks, they can have torches and redstone placed on them, conduct a redstone current, suffocate mobs, and more.

Spawners cannot be moved by pistons Piston Transparency Yes Luminance None Blast resistance 2.5 Tool Any tool Renewable Yes Stackable Yes (64) Flammable No Drops Itself Data values See Data values Pistons are blocks capable of pushing most blocks, depending on minecraft .

Mechanics

A monster spawner is only active when a player is within a radius of 16 blocks from the spawner. While the block is active, it will spawn mobs within an 8⃗8⃗3 block volume (8 wide, 8 long, and 3 high) centered on the center of the block, effectively meaning mobs can spawn in a 9⃗9 area, or 3.5 blocks from the spawner. 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 8⃗8 range, but vertically, mobs will spawn with their legs at either the same layer as the spawner block, one block above it, or one block below it.

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 When leaves are opaque (in "fast" graphics), they completely block rendering. When leaves are transparent (in "fancy" graphics), the world behind them is also rendered. Opacity (and its inverse, transparency) are properties of blocks with minecraft blocks to conform with the mobs` height, width, or other rules governing their individual spawn volumes. 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 Air Type Non-Solid Block Transparency Yes Luminance No Data value dec: 0 hex: 0 bin: 0 Name air Air is the block present in otherwise empty space. Contents 1 Obtaining 1.1 Natural generation 2 Usage 3 History 4 minecraft .

Summary of maximum spawn volumes for common monster spawners
Mob type Required Volume Failure rate from 8⃗8⃗4 volume Vertical
alignment

Pig
8.9 ⃗ 8.9 ⃗ 2.9 2.531252%




Cave Spider
8.7 ⃗ 8.7 ⃗ 2.5 1.531252%




Silverfish Silverfish Health points 8 () Attack strength 1 () Size Height: 0.3 Blocks Width: 0.4 Blocks Spawn After mining monster eggs or from spawners in strongholds. First appearances See History Drops None Experience 5 Sounds minecraft
8.3 ⃗ 8.3 ⃗ 2.7 0.28125%




Zombie


Skeleton


Blaze Blaze Health points 20 () Attack strength Fireball: 5 () Contact: Easy: 4 () Normal: 6 () Hard: 9 () Size Height: 1.8 Blocks Width: 0.6 Blocks Spawn Nether Fortresses, light level of 11 or minecraft
8.6 ⃗ 8.6 ⃗ 3.8 1.125%





Spider Spider Health points 16 () Attack strength Easy: 2 () Normal: 2 () Hard: 3 () Size Height: 0.9 Blocks Width: 1.4 Blocks Spawn Light level of 7 or less, 3×3×2 space on solid blocks minecraft
9.4 ⃗ 9.4 ⃗ 2.9 6.125%



  1. 8⃗8⃗3 is the actual volume across which spawners spawn entities, but this volume only contains the entity`s center. The failure rate assumes 8⃗8⃗4 because it is a popular misconception that 8⃗8⃗4 is the maximum efficiency volume of empty space for mob spawners - it actually depends on the size of the entities themselves. Note that 10⃗10⃗4 is guaranteed to accommodate all of the above mobs. Also note that this failure rate only accounts for failures due to attempting to spawn a mob at the edges of the spawn range, not other causes of failure such as mobs attempting to spawn intersecting the spawner block itself.

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 8.9⃗8.9⃗2.9, the requirement of grass blocks that are necessary for pigs to spawn will reduce the actual volume in which they successfully spawn, however other mobs can spawn in mid- air Air Type Non-Solid Block Transparency Yes Luminance No Data value dec: 0 hex: 0 bin: 0 Name air Air is the block present in otherwise empty space. Contents 1 Obtaining 1.1 Natural generation 2 Usage 3 History 4 minecraft , ignoring general rules about spawning on solid ground.

The spawner does not have to be within 4 blocks of the correct biome for it to spawn mobs. As such, spawners can place mobs where they normally wouldn`t generate. For instance, a mooshroom spawner will operate in a plains biome as long as there are any mycelium blocks within the spawn area.

The block will attempt to spawn 4 mobs at randomly chosen points within the spawning area, then wait anywhere from 200 to 799 ticks (10 to 39.95 seconds) before spawning again. As it waits, the mob inside the block will spin 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 will often produce fewer than 4 mobs. When it does spawn, it will "poof", and more lightless flames will temporarily appear around the Spawn block. If the block fails to spawn any mobs because it did not pick any suitable locations, it will repeat this process every tick until it succeeds. Only when it manages to spawn at least one mob will it start waiting for the next cycle. If, at the time of spawning, 6 or more mobs of the spawner`s type are present within a 9⃗9⃗9 area, centered on the spawner block, the spawner "poofs" without creating any mobs and then waits for the next cycle.

When mining near a monster spawner that has no valid places to spawn, sometimes a monster will spawn immediately after a block is mined.

A monster spawner which can produce Spiders.

Custom spawners

Monster spawners are capable of much more than they are used for in survival Minecraft. Using commands, they can be customized in many ways:

  • 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.

Data values

See also: Block entity format

A monster spawner has a block entity associated with it that holds additional data about the block. The block`s block entity ID is mob_spawner.


  • Block entity data
    • Tags common to all block entities see Template:Nbt inherit/blockentity/template

    • SpawnPotentials: Optional. List of possible entities to spawn. If this tag does not exist, but SpawnData exists, Minecraft will generate it the next time the spawner tries to spawn an entity. The generated list will contain a single entry derived from the EntityId and SpawnData tags.

      • : A potential future spawn. After the spawner makes an attempt at spawning, it will choose one of these entries at random and use it to prepare for the next spawn.

        • Entity: Overwrites EntityId when preparing the next spawn.

        • Weight: The chance that this spawn will be picked as compared to other spawn weights. Must be non-negative and at least 1.

        • Properties: Overwrites the contents of SpawnData when preparing the next spawn. Not optional; an empty one will be created if it does not exist.

    • EntityIddeprecated in 1.9: The Entity ID of the next entity(s) to spawn. Both mob entity IDs and other entity IDs will work. Warning: If SpawnPotentials exists, this tag will get overwritten after the next spawning attempt: see above for more details. Use the "id" tag inside SpawnData (see below).

    • SpawnData: Contains tags to copy to the next spawned entity(s) after spawning. Any of the entity or mob tags may be used. Note that if a spawner specifies any of these tags, almost all variable data such as mob equipment, villager profession, sheep wool color, etc., will not be automatically generated, and must also be manually specified (note that this does not apply to position data, which will be randomized as normal unless Pos is specified. Similarly, unless Size and Health are specified for a Slime or Magma Cube, these will still be randomized). This, together with EntityId, also determines the appearance of the miniature entity spinning in the spawner cage. Note: this tag is optional: if it does not exist, the next spawned entity will use the default vanilla spawning properties for this mob, including potentially randomized armor (this is true even if SpawnPotentials does exist). Warning: If SpawnPotentials exists, this tag will get overwritten after the next spawning attempt: see above for more details.

    • SpawnCount: How many mobs to attempt to spawn each time. Note: Requires the MinSpawnDelay property to also be set.

    • SpawnRange: The radius around which the spawner attempts to place mobs randomly. The spawn area is square, includes the block the spawner is in, and is centered around the spawner`s x,z coordinates - not the spawner itself. It is 2 blocks high, centered around the spawner`s y coordinate (its bottom), allowing mobs to spawn as high as its top surface and as low as 1 block below its bottom surface. Vertical spawn coordinates are integers, while horizontal coordinates are floating point and weighted towards values near the spawner itself. Default value is 4.

    • Delay: Ticks until next spawn. If 0, it will spawn immediately when a player enters its range. If set to -1 (this state never occurs in a natural spawner; it seems to be a featureSpecial attraction accessed only via NBT editing), the spawner will reset its Delay, and (if SpawnPotentials exist) EntityID and SpawnData as though it had just completed a successful spawn cycle, immediately when a player enters its range. Note that setting Delay to -1 can be useful if you want the game to properly randomize the spawner`s Delay, EntityID, and SpawnData, rather than starting with pre-defined values.

    • MinSpawnDelay: The minimum random delay for the next spawn delay. May be equal to MaxSpawnDelay.

    • MaxSpawnDelay: The maximum random delay for the next spawn delay. Warning: Setting this value to 0 crashes Minecraft. Set to at least 1. Note: Requires the MinSpawnDelay property to also be set.

    • MaxNearbyEntities: Overrides the maximum number of nearby (within a box of spawnrange*2+1 x spawnrange*2+1 x 8 centered around the spawner block) entities whose IDs match this spawner`s entity ID. Note that this is relative to a mob`s hitbox, not their physical position. Also note that all entities within all chunk sections (16x16x16 cubes) overlapped by this box are tested for their ID and hitbox overlap, rather than just entities which are within the box, meaning a large amount of entities outside the box (or within it, of course) can cause substantial lag.

    • RequiredPlayerRange: Overrides the block radius of the sphere of activation by players for this spawner. Note that for every gametick, a spawner will check all players in the current world to test whether a player is within this sphere. Note: Requires the MaxNearbyEntities property to also be set.

Video

History

Infdev
Seecret Friday 2 Monster Spawner-Pre Beta 1.9.png Added mob spawners. They could be picked up and when placed, spawned pigs.
Jun. 27, 2010 Mob spawners given a unique ID, reducing crashes.
Beta
? Changed name from mob spawner to monster spawner.
1.2 Monster spawners again now show a rotating model inside of what they spawn in single player after being missing for several versions.
Official release
1.0.0 Beta 1.9-pre1 Monster Spawner.png Changed monster spawner texture to a darker color.
Beta 1.9-pre3 Spawners will now drop when mined using a tool enchanted with the new Silk Touch "Flame" redirects here. For the non-solid damage-dealing block, see Fire. “ How does enchanting work in Minecraft? Well, you open a magical book and pick a random spell, not quite sure knowing what it will minecraft enchantment.
Beta 1.9-pre5 Squid spawners now only work 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-pre6 Monster spawners are now easier to destroy.
1.2.1 12w06a Monster spawners now show the mob they are spawning in multiplayer; previously it always showed a pig.
1.3.1 12w22a Monster spawners will now drop experience when destroyed.
12w26a Monster spawners now support extra data pertaining to what they spawn.
1.8 14w26c The horizontal spawning range is now calculated from the center of the block rather than the northwest corner.
The exclusion zone has been reduced: for a default spawner, the 6 mobs must be in a 9⃗9⃗9 region rather than 17⃗9⃗17 to prevent spawning.
14w28b The type of mob spawner can be changed by using a spawn egg Spawn Egg Type Items Durability N/A Renewable No Stackable Yes (64) Yes (16) (Console Edition) First appearances See History Data value dec: 383 hex: 17F bin: 101111111 Name spawn_egg “ You know what would be fun? If every minecraft on it.
1.9 16w02a A spawner containing a large mob will now scale down the mob to fit inside the spawner block.
1.11 16w32a The block entity ID is changed from MobSpawner to mob_spawner.
16w39a Spider monster spawners now generate in woodland mansions.
Pocket Edition Alpha
0.9.0 build 1 Added monster spawners.
build 2 Added monster spawners to the creative inventory. The type of mob spawner can be changed using a spawn egg Spawn Egg Type Items Durability N/A Renewable No Stackable Yes (64) Yes (16) (Console Edition) First appearances See History Data value dec: 383 hex: 17F bin: 101111111 Name spawn_egg “ You know what would be fun? If every minecraft .
build 9 Monster spawners now emit light.
Pocket Edition Pocket Edition Author(s) Mojang AB Jens Bergensten Aron Nieminen Daniel Kaplan Tommaso Checchi Shoghi Cervantes Jason Major Daniel Wustenhoff Tomas Alaeus Mikael "Slicedlime" Hedberg MicrosoftTechnology company Studios 1] Platform(s) Written in C++ 2] Latest version 1.1.2 minecraft
1.1 build 1 Spider monster spawners now generate in woodland mansions.
Console Edition
TU1 CU1 1.0 Patch 1 Added monster spawners.
TU31 CU19 1.22 Patch 3 The type of mob spawned can now be changed by using a spawn egg Spawn Egg Type Items Durability N/A Renewable No Stackable Yes (64) Yes (16) (Console Edition) First appearances See History Data value dec: 383 hex: 17F bin: 101111111 Name spawn_egg “ You know what would be fun? If every minecraft .

Issues

Issues relating to ⃢₀ₜMonster Spawner⃢₀₝ are maintained on the issue tracker. Report issues there.

Gallery