The Betweenlands Wiki

Leeches are parasitic creatures that spawn in Swamplands and Patchy Islands biomes.


Leeches appear as brownish, silverfish-like worms. They exist in two states: "hungry" and "full." When they are hungry they will rush toward the nearest mob or player and latch on, dealing melee damage over time. They will remain affixed until they have had their fill at which point they will let go and become "full." Leeches will not attack when full, but become hungry again after a period of time.

Leeches can be killed in one hit using a rare loot weapon, the Critter Cruncher.


In the early and even middle-tier game, Leeches can be surprisingly powerful. They leech large amounts of damage, and if you have no armor even two Leeches clinging on to you one after the other is enough to kill. They should merely be avoided until you have weaponry to kill them before they have a chance to completely leech you of health, and as shields do not work on them, another difficulty is brought up. The best counter to all this is to get one to connect to a Swamp Hag (which is surprisingly easy) and kill it while it is still full.


The drops from Leeches are derived from the leech loot table.

The following is a list of all of the items that can be dropped by Leeches, including their rolls, quantities, and weights.

Leech Drops
Dropped Item Quantity Weight
0-1 Rolls:
SmallBallofSap.png Ball of Sap 1
(+0-1 per Looting level)
1/1 (100%)
2 Rolls, if killed by player, Spook event only:
Nothing N/A 8/11 (72.73%)
SmallBlueCandy.png Blue Candy 1 1/11 (9.09%)
SmallRedCandy.png Red Candy 1 1/11 (9.09%)
SmallYellowCandy.png Yellow Candy 1 1/11 (9.09%)
1 Roll, if killed by player, Winter event only:
Nothing N/A 3/4 (75%)
SmallMincePie.png Mince Pie 1 1/4 (25%)


Advancement In-game Description Parent Actual Requirements ID
Critical Hit
Slay a critter with a Critter Cruncher Chopping Boy Kill a Blood Snail, Dragonfly, Firefly, Leech, Mire Snail, Sporeling, or Termite with a Critter Cruncher fighter


Sound Subtitles Source Description ID
Leech dies Hostile Plays when a Leech dies. leech_death
Leech hurts Hostile Plays when a Leech takes damage. leech_hurt

Leech squelches Hostile Plays when a Leech is idle. leech_living


The Betweenlands Mobs
Passive Blind Cave FishDragonflyFireflyFrogGeckoGreeblingMire SnailRoot SpriteSporeling
Neutral Greebling RiderLurkerPyrad
Aggressive AnglerBlood SnailChiromawCrypt CrawlerDark DruidEmberling ShamanInfestationLampreyLeechLiving RootPeat MummyShallowbreathShamblerSilt CrabSludge (Smol) • Sludge Worm (LargeSmallTiny) • Sprites (AshBoulder) • StalkerSwamp HagTar BeastTermiteWight
Tamable & Utility EmberlingHarlequin ToadTarminion
Chief BarrisheeChiromaw Matriarch
Boss Dreadful Peat MummyPrimordial MalevolenceSludge MenaceSpirit Tree
Unimplemented Temple Guardian