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The Swamp is a biome. Swamps are dark, muddy areas, filled with massive trees and hostile creatures. Massive trees cover the sky in the swamp, making the biome always difficult to see in. Fire geysers are an uncommon find in the biome, always surrounded by 3 Surtlings. The swamp is also the place to find Scrap iron, a crafting material. Stone statues are also present in the swamp. Their purpose is currently unknown.

It is always lightly raining in the swamp, regardless of the weather elsewhere; this means the player will always be Wet when travelling through the swamp, further enhancing the difficulty of the area, especially at night where the player will always be Cold. Poison is also a common effect in the swamp from Oozers, Blobs, and Leeches, making Poison resistance mead particularly helpful.

The swamp contains Sunken Crypts, which require a Swamp key to unlock. These crypts are a set of rooms that are often separated by Muddy scrap piles, which can be mined for Scrap iron, Leather scraps and Withered bones. In addition, abandoned structures and hostile creature spawners can be found.

In addition to the Sunken Crypts, muddy scrap piles can be found buried beneath the swamp. These veins can be located using the Wishbone after defeating Bonemass, though it should be noted these tend to be uncommon and are generally not viable for providing any significant quantities of iron, because the player is unable to mine the deposit when fully submerged in water.




Amount Item Chance
1-5 Amber.png Amber 11.8%
1-3 Amber pearl.png Amber pearl 11.8%
20-30 Ancient bark.png Ancient bark 11.8%
1 Chain.png Chain 11.8%
20-60 Coins.png Coins 11.8%
10-15 Ironhead arrow.png Ironhead arrow 11.8%
10-15 Poison arrow.png Poison arrow 11.8%
1-3 Ruby.png Ruby 11.8%
1 Withered bone.png Withered bone 5.9%


  • It may be necessary to use a boat to reach the swamp, as the player's starting island is not always connected to a swamp biome.
  • There are various ways to glitch (i.e. through unintended ways) into a swamp crypt without using a key. These methods may be patched in later versions of the game.


Biomes (View Template)
Completed MeadowsBlack ForestOceanSwampMountainPlains
WIP/Unfinished MistlandsDeep NorthAshlands