Also Checkout Dark Energy
- Brings life to The Caverns.
- Items powered by slug energy have a bluish glow as opposed to things powered by Dark Energy, which is red.
- Slug Energy is the key to everything in SlugTerra.
- If Slug energy is corrupted like if one of the Elemental Slugs was ghouled, then a cavern which relies on that certain element may die as seen in Return of the Elementals when the Air Elemental was ghouled. Trixie said that Wind-Farm Cavern practically ran on Hoverbug and Tormato slugs meaning that the Cavern could die.
- Some people say that deep down, slugs and humans share the same energy.