Mud is a block that generates at the bottom of the water in the Betweenlands as well as on the surface of Marsh and Sludge Plains biomes in large quantities and in smaller patches on the surface of the Swamplands biome. When stood on, the player will slowly sink into the block. This suffocates the player if they sink too deep. You can free yourself of the mud by tapping the jump key repeatedly, and you will slowly work your way out. The effects of mud sinking can also be completely negated by wearing Rubber Boots; in Creative Mode players can easily get out.
- Smelt Mud = Mud Brick (item)