Subdungeons are smaller versions of a level dungeon. They usually contain some sort of power up hidden behind a puzzle or an enemy. Some subdungeons provide quest chain advancement instead of a powerup, these subdungeons will be not appear anymore once you have advanced the quest chain.
|Free Health Potion||Contains a 5x5 area of dark tiles with a few walls and one level 5 Goo Blob who drops a Health Potion on death|
|The New World||Contains a large area with no dark tiles and a "Soko Trolls" puzzle. Shifting the Soko Trolls to the center 3 squares with their names spelling out "The" "New" "World" opens a bridge to the treasure on the island|