Crypt rats are rats lurking in the Barrows tunnels. Despite their Combat level, they are weaker than they appear unless they come in large amounts. Due to the disgusting appearance of the crypt rat, not even a cat will try to catch it.
They do not pose a large threat to most players, but with many of them together along with other monsters, they become an annoyance. Unlike most rats, they ARE aggressive and can usually land hits, unlike regular rats.
These are widely seen as a great way to get kill count in Barrows, as they can be killed quickly and don't pose much of a threat to players.
Item Quantity Rarity GE market price Bones 1 Always 43