Tar is a thick black liquid that is very hard to swim through. It generates in pools in the Swamplands and Sludge Plains biomes, as well as in Tar Pool Dungeons. When the player becomes completely submerged in Tar, they immediately begin to take suffocation damage, and attempting to jump in it will only cause them to sink back down. In addition, their vision will be completely covered in flowing tar while they are submerged. Tar Beasts will spawn inside of Tar Pools, although in the Swamplands they are much rarer.
- Beta 1.0.0: Introduced.