Spider

A spider is a hostile mob that climbs walls and attacks players in the dark.

Spawning

Spiders spawn in the dark in every Overworld biome, in packs of up to 4.

A spider is 1.4 blocks wide. It spawns only where the eight spaces around its spawn point, at the same level, hold no liquid and nothing it would collide with.

A quarter of the monster spawners in dungeons spawn spiders. A spider is one of the three mobs that can spawn beside a sleeping player.

One spider in a hundred spawns with a skeleton riding it, except from a monster spawner.

On Peaceful no spider spawns, and any in the world is removed.

Drops

A spider drops 0–2 string when it dies.

Killing one earns the Monster Hunter achievement.

Behaviour

In light 11 or less, a spider targets the nearest player within 16 blocks, even one it cannot see. It also attacks any mob or player that hurts it, in any light.

In light 12 or more it seeks no player. In that light, a spider already chasing a target it can see loses it 1 tick in 100.

It walks at 3.5 blocks per second, 80% of a player's walking speed.

Between 2 and 6 blocks from its target, it leaps at it 1 tick in 10. Closer in, it hits for 2 damage.

It climbs any wall it walks into, as though on a ladder.

It makes no footstep sounds, and does not trample farmland or light redstone ore by walking on it.

With no target it wanders, choosing darker spaces.

Data values

• Entity network ID: 52