Height: 0.5 Blocks
Cave spiders inherit most of their behavior from regular spiders:
- Neutral under daylight or in light levels of 9 or above, otherwise they are hostile. However, once they become hostile, light does not affect them.
- Can climb walls when needed.
- Attack by leaping at their targeted entity.
- Are unaffected by cobwebs and poison.
- Can spawn spider jockeys in the Bedrock Edition.
However, they have some distinctions from regular spiders:
- Can fit through a space that is one block wide and ½ block tall.
- Can go through the spaces between two different types of (unconnected) fences.
- Cannot spawn with status effects.
On normal or hard difficulty, cave spiders inflict Poison upon attacking. On normal difficulty, the poison lasts for 7 seconds and can cause up to 4 () damage. On hard difficulty, it lasts for 15 seconds and can cause up to 10 () damage. Note that even on hard, poison damage is not taken when health is at 1 ().
Cave spiders have entity data associated with them that contain various properties of the mob.
|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.|
|Monster Hunter||Kill any hostile monster||Adventure||Kill one of these 24 mobs. In 1.14,[upcoming] you can also earn this by killing one of these 2 mobs. Other mobs are ignored for this advancement.|
|Monsters Hunted||Kill one of every hostile monster||Monster Hunter||Kill each of these 24 mobs. In 1.14,[upcoming] also kill each of these 2 mobs. Other mobs may be killed, but are ignored for the advancement.|
|Java Edition Beta|
|1.8||Pre-release||Added cave spiders.|
|1.0.0||?||The cave spider's health points have now been reduced from 20 ( × 10) to 12 ( × 6).|
|1.2.1||12w06a||Cave spiders will now swim extremely fast with the water stream towards the player, but seem to be almost not moving against the water stream.|
|Cave spiders can now climb ice blocks.|
|1.8||14w06a||Cave spiders can now no longer draw line of sight through opaque blocks.|
|Cave spiders have now been given the new AI that regular spiders have received.|
|14w11a||Cave spiders will now run away from creepers that are about to explode.|
|?||The cave spider's venom is now no longer neutralized by splash potions of weakness, which may or may not be a bug.|
|1.8.1||pre1||Cave spiders will now no longer run away from creepers that are about to explode.|
|1.11||16w32a||The cave spider's entity ID has now been changed from |
|Pocket Edition Alpha|
|0.11.0||build 1||Added cave spiders with their jockey variant.|
|0.12.1||build 1||Cave spiders will now have a walking sound.|
|Cave spiders can now spawn with wither skeletons riding them when spawning as spider jockey in the Nether.|
|Cave spiders will now drop spider eyes.|
|0.14.0||build 1||Cave spiders can now be ridden by baby zombies and baby zombie villagers.|
|0.15.0||Cave spiders can now spawn with strays riding them when spawning as spider jockey in snowy biome with a view of the sky.|
|Cave spiders can now be ridden by baby husks.|
|1.1.0||alpha 126.96.36.199||The cave spider's entity ID has now been changed from |
|The cave spider's poison time from attack has now been changed to be based on difficulty.|
|Legacy Console Edition|
|TU5||CU1||1.0||Patch 1||Added cave spiders.|
|TU12||Cave spiders will now swim extremely fast with the water stream towards the player, but seem to be almost motionless against the water stream.|
|Cave spiders can now climb ice blocks.|
|New Nintendo 3DS Edition|
|0.1.0||Added Cave Spiders.|
- While a cave spider's hitbox is only 13.9% the volume of a normal spider's, its model's volume is 34.3% as large. The shadow is even larger: compared to the normal spider's shadow it has an area of 49%.
- If a direct hit from a Splash potion of harming ( Instant Damage II ) it will immediately kill a cave spider.
Picture of cave spider going through a 1×1×0.5 block.
A cave spider and its spawner.
The health bar turns yellow-green when bitten by a cave spider.
Size comparison between a cave spider and a regular spider in a dungeon.
Another cave spider farm generated in an abandoned mineshaft.
A group of cave spiders trying to swim after the player in a mineshaft.