The zantar slug is a carbon-based,[1] resilient organism found in the humid mountain crevasses of Garrxax,[2] capable of quickly healing maimed or damaged tissue by absorbing nutrients from the soil.[3] This was made possible by their metabolism, to the extent that a zantar slug severed in two could stitch itself back together. They were small enough to fit into a terran's boot. They secreted acidic mucus,[1] which could be used as a form of attack, strong enough to penetrate neosteel.[3] They were not sapient, but possessed strong survival instinct. When its mucus came in contact the sap of a vine located on he other side of their continent, the result was a massive explosion, a phenomena studied by Terran Dominion researchers.[1]

In 2501,[1] they were assimilated into the Zerg Swarm, becoming roaches. The roach inherited its acidic abilities.[3] Abathur later used the similarities between the unassimilated slug and the roach as the basis for a mutation for the roach that allowed its acid saliva to better dissolve poorly armored foes.[4]


  1. 1.0 1.1 1.2 1.3 Johnston, Antony. "“Acid Burns”." (April 18, 2013). Blizzard Entertainment. StarCraft Lore: Acid Burns Accessed 2013-04-18.
  2. Barba, Rick. StarCraft Field Manual (hardcover). Insight Editions, November 17, 2015.
  3. 3.0 3.1 3.2 Blizzard Entertainment staff. 2010-07-24. Units: Roach. Blizzard Entertainment. Accessed 2014-08-20.
  4. Blizzard Entertainment. StarCraft II: Heart of the Swarm. (Activision Blizzard). PC. Evolution pit units (in English). 2013.