Blood Crawler

Blood Crawlers are spider enemies that exist in the video game Terraria. They were added in the 1.2 update.

Appearence
The Blood Crawler is a spider enemy like the Wall Creeper or the Black Recluse but with a different colour pallet to mach the colours of the Crimson.

Spawning
Blood Crawlers spawn at the Underground and Surface Crimson however they are more likely to be found underground.

Abilities
As a spider, the Blood Crawler has two AIs. The first one is for when there are no walls behind creature. Then it behaves like a regular enemy attempting to hit the player by running and jumping into them. The second one activates when there is a wall behind it. In that case it will begin to move freely on the wall without needing to touch the ground.

Loot
When killed, the Blood Crawler will drop 1 silver and 30 copper coins and will also have a 33.33% chance to drop a Vertebra.

Bestiary
The bestiary entry for the Blood Crawler says: "Most spiders operate independently, but ones touched by the Crimson hive coordinate together to consume life."