|Release date||7 September 2017 (Update)|
|Always drops||Bones, 10 swamp tar|
|Icky sticky flicky.|
Tar Monsters reside in the Tar Swamp area of Fossil Island. They hide underneath the tar and only appear as Tar Bubbles. Once a player steps near, they will emerge and attack using a typeless attack style.
Using a hoop snake on them will temporarily stun them, turning them into a Passive Tar Monster, which makes them unaggressive to all players. This can also be done both when they appear as Tar Bubbles and also when they have emerged from the tar.