| Property | Details |
|---|---|
| Image | ![]() |
| Type | Anchored |
| Category | Tunics |
| Species | Rotsac lucifer ("rot sac light-bringer") |
| Attitude | Passive |
| Biome | Coral Gardens |
| Description | An oily, glowing bulb. Has a heartbeat. |
| Bioreactor Fuel | 120 seconds |
| Scan Tool | Bioscanner |
"Do not hesitate to use alien lifeforms for survival purposes, but always search for unexpected complexity." — PDA upon first collection of Lucifer Rotsac
The Lucifer Rotsac is an anchored Lifeform similar to Earth's tunicates. It can be picked up by the player as a Raw Material and used to craft Rubber and Grease. It can also be grown in a Growbed.
Appearance
The Lucifer Rotsac has a simple bulbous body that produces a bright orange luminescence. It lives in a symbiotic relationship with the Cradle Shootroot.

Obtaining
Lucifer Rotsacs always appear growing on top of Cradle Shootroots, from which they can be picked by hand.
After a while, they will regrow and can be harvested again.
Lucifer Rotsacs can be grown by planting a Cradle Shootroot in a Growbed.
Uses in Crafting
- Rubber
- Grease
Databank Entry
Tentatively Rotsac lucifer, the light-bringing rotsac. A tunicate-like animal which ferments decomposing biomatter inside its body.
- Hidden body: The rotsac's larval swimming body transforms into a spherical adult form. Because fermentation does not require oxygen, the rotsac actually stops breathing as it matures.
- Swollen with hydrocarbons: The rotsac contains isoprene, useful for fabricating rubber and lubricant. High diacetyl levels give the rotsac a strong caramel funk.
- Bioluminescence: Glow may attract animals (especially sun-seeking microorganisms) to defecate or die on the rotsac. Bioluminescence seems to play an important role in this world's ecology. Regular experiments with light reactions are advised.
- Symbiote: Often found glued to the cradle shootroot, an unrelated species of starfish-like bottom-dweller that provides the rotsac with an anchor while it grows.
Assessment: Useful source of organic polymers for rubber and oil.
Consult your Noetic Advisor to research optimal search areas.
Source: Scan a Lucifer Rotsac
Trivia
- The name “Rotsac” refers to their metabolism, producing oils by internal fermentation, whilst “Lucifer” means “light-bringer”, referring to its bright orange luminescence.
- The player is able to throw the Lucifer Rotsac.
