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 (spawns only on top of the central block). Top half of space may be occupied by transparent blocks (glass, etc.).
First appearances	See History
Common drops	String (0–2)
Uncommon drops	Spider Eye (1⁄3 chance) when killed by the player
Experience	5
Sounds	Idle/Hurt Death
Internal ID	JE: 52 BE: 35
Entity ID	spider

This article is about regular spiders. For venomous dark-blue spiders found in abandoned mineshafts, see Cave Spider. For the Spider being ridden by a Skeleton, see Spider Jockey.

Spiders are common neutral mobs that have the unique ability to climb walls.

Spawning

Spiders spawn in the Overworld in 3×3×2 space on solid blocks (centered on the middle block) at a light level of 7 or less, in groups of 4. The top blocks can be transparent, but not solid.

In Bedrock Edition, leaves may spawn a single spider provided that there are 3×3×2 spaces around it.

Monster spawners

Spiders spawn from spawners found in 25% of dungeons. They also spawn from spawners in rare hidden rooms in Woodland mansions.

Potion effects

On hard difficulty, spiders will occasionally spawn with potion effects. For each pack spawn, there is a (10×clamped regional difficulty)% chance that the game will attempt to apply a status effect. If it decides to do so, then it selects the effect with a 40% chance of it being speed, and a 20% chance of it being strength, regeneration, or invisibility; the effect is then applied to all entities within the pack for the maximum amount of time possible.

This does not apply to Cave Spiders.

Drops

Spiders drop 0-2 string upon death. If killed by a player or tamed wolf, it also has a ¹⁄₃ chance to drop a spider eye. They drop 5 experience when killed by a player or tamed wolf.

Behavior

Spiders are hostile to the player and to iron golems as long as the light level immediately around them is 11 or less; otherwise they won't attack unless a player attacks first. Hostile spiders will continue to chase the player even if they are exposed to well-lit locations. If a spider sustains damage from a source other than a direct attack from the player, such as falling, its hostility will be reset.

Spiders can climb up over walls and other obstacles. If a spider cannot find an ideal path to the player (when a player goes behind or on top of a wall), it will get as close as it can to the player's position from the outside or below, and proceed to climb the wall vertically until it gets to the top, even if it loses its aggression towards the player. Additionally, when a spider loses its aggression on the player, it will continue moving forward blindly for about two seconds. This behavior causes the spider to climb up any walls in its path.

If shot from distance with an arrow when outside detection range, spiders will now turn and run in the direction the arrow was fired, essentially towards the player. If the player moves away, the spider will still follow the same path unless the player enters detection range, then the spider will change direction and attack.

While not poisonous themselves, spiders are unaffected by the poison status effect.

Spiders will often jump around when attacking. At close range, spiders occasionally pounce their attackers.

If a splash potion of Invisibility is thrown at the spider, its body will vanish but its eyes will remain visible.

Variants

There is a 1% chance that a spider will spawn with a skeleton riding it, forming a spider jockey. In the Nether, a spider (spawned with a spawn egg, commands or mob spawners, since these do not naturally spawn there) has a 0.8% to spawn a wither skeleton on its back and form a wither jockey instead. In snowy biomes, a spider has a 0.8% to spawn a stray on its back and form a stray jockey instead.

On hard difficulty, spiders have up to a 10% chance (depending on regional difficulty) of spawning with a single beneficial status effect. This effect can be speed (40%), strength (20%), regeneration (20%) or invisibility (20%), and has an essentially infinite duration.

Data values

See also: Chunk format

Spiders have entity data associated with them that contain various properties of the mob. Their entity ID is spider.

• 
  Entity data
  • Tags common to all entities see Template:Nbt inherit/entity/template
  • Tags common to all mobs see Template:Nbt inherit/mob/template

Advancements

Main article: Advancements

Icon	Advancement	In-game description	Parent	Actual requirements (if different)	Internal ID
	Adventure	Adventure, exploration, and combat	—	Kill any entity, or be killed by any entity.	minecraft:adventure/root
	Monster Hunter	Kill any hostile monster	Adventure	Kill one of these 22 mobs. Other mobs are ignored for this advancement.	minecraft:adventure/kill_a_mob
	Monsters Hunted	Kill one of every hostile monster	Monster Hunter	Kill each of these 22 mobs. Other mobs may be killed, but are ignored for the advancement.	minecraft:adventure/kill_all_mobs

History

The original brown spider.

Classic
0.26 SURVIVAL TEST 8					Spider test.
0.27 SURVIVAL TEST 10					Officially added spiders, the second mob added in Survival Test.
					Spiders were originally brown in early development (changed to the current texture because of a suggestion from a user on the TIGSource forums). They did not jump as far (compared to their range in the Beta update) and killing them gave the player 105 points.
Indev
February 19, 2010					Spiders now drop 0 - 2 string upon death.
Alpha
1.0.17					Added spider jockeys - skeletons spawned riding spiders.
Beta
1.2					Spiders were given the ability to climb vertical walls made of any block and could "see" the player through solid blocks to track them down (Creepers used to have this ability before it was transferred to the Spiders).
1.4					Spiders stopped trampling crops, and making step sounds (or the step sounds were much quieter).
Official release
1.3.1					Spiders now become aggressive towards the last mob or player that hit them.
1.4.2			12w39a		Spiders were given a new walking sound.
1.6.1			13w24a		Spiders have a chance to spawn with the Swiftness, Strength, Regeneration, or Invisibility status effects on Hard difficulty.
1.7.2			1.7-pre		Spiders are no longer provoked when attacked by the player in Creative mode.
1.8			14w06a		Spiders can no longer see the player through blocks, and have been updated to the new AI system, including AI specially made for spiders, allowing them to better take control of their climbing ability.
			14w11a		Now run away from creepers that are about to explode.
1.8.1			1.8.1-pre1		No longer run away from creepers that are about to explode.
1.9			15w36a		Spiders can draw line of sight through blocks again.
1.11			16w32a		Changed entity ID from Spider to spider.
Pocket Edition Alpha
0.3.3					Added spiders.
0.7.3					The eyes on spiders now glow in the dark.
0.9.0			build 1		Leaves will now have a chance to spawn spiders, creating a higher amount of spiders in tree-rich biomes at night. (version exclusive)
					Updated spider AI.
			build 4		The animation for spiders is now twice as fast.
0.9.2					Spiders no longer draw a line of sight through solid blocks.
0.11.0			build 1		Added spider jockeys - skeletons spawned riding spiders.
0.12.1			build 1		Spiders now drop spider eyes.
0.14.0			build 1		Baby zombie jockeys will now check for nearby spiders to mount prior to attacking the player.
Legacy Console Edition
TU1	CU1	1.0	Patch 1		Added spiders.
TU14		1.04			Spiders become aggressive towards the last mob or player that hit them now.
TU31	CU19	1.22	Patch 3		Spiders can no longer see the player through blocks, and have been updated to the new AI system, including AI specially made for spiders, allowing them to better take control of their climbing ability.

Issues

Issues relating to “Spider” are maintained on the issue tracker. Report issues there.

Trivia

• If the water a spider is swimming in is only 1 block deep, they may pounce nearby enemies upon touching the submerged floor.
• Spiders do a flip and land on their backs when they die, unlike most mobs (which land on their sides).
• If a spider tries to go through the world border it will start climbing the world border.

Gallery

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  A spider.

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  Spiders are one of the most visible mobs at night due to their glowing red eyes.

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  Spiders climbing into each other.

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  A view of a spider from below.

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  Spider shot by skeleton.

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  A spider that spawned with the Swiftness potion effect

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  A spider that naturally spawned with an invisibility potion effect.

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  A spider in a 1.5×1.5 space.

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  A spider's vision when spectating it.

References

Entities

View at: Template:Entities/content [edit]