Acid Slugs

Acid Slugs are basically huge slugs. What makes them dangerous is implied by their name; they attack any being they sense near them with a strong, poisonous acid, which can destroy weapons and armor and cause horrible burns on the skin. Acid slugs however are very susceptible to fire, and a lit torch is most times enough to destroy them.

Acid slugs are only found in dungeons, caves and swamps.

While their behavior is always the same, the looks of the Acid Slugs changed quite often. In Ultima VI, they looked like pink blobs. In the Underworlds, they looked like green slugs. In Ultima VII and Ultima VII Part Two: Serpent Isle, they looked like white slugs.