- Players can find Lucifer Rotsac on a glowing orange star-shaped coral formation in Subnautica 2.
- Players can collect this item without tools and craft rubber using the Fabricator at the lifepod.
- Rubber is essential for crafting fins, air tanks, and more beginner items in Subnautica 2.
In Subnautica 2, rubber is a simple resource that quietly controls your entire progression. The key ingredient required to make Rubber in the game is strangely named Lucifer Rotsac, and it is not at all hard to locate. This resource looks like a decorative underwater coral rather than something that seems crucial for survival. So, let’s learn how to get Lucifer Rotsac in Subnautica 2 and craft rubber using it.
How to Get Lucifer Rotsac in Subnautica 2
Players can find Lucifer Rotsac on the ocean floor in Subnautica 2. This resource is attached to the distinctive star-shaped coral formations with a bright orange glow at the center.
To reiterate, finding Lucifer Rotsac in Subnautica 2 is easier than most might expect. The challenge lies in recognizing the environment. Once you recognize this visual cue, spotting them becomes far more manageable during your underwater exploration.

The best part is that you do not need any harvesting tools, such as the Survival Multitool, to collect Lucifer Rotsac. Simply swim close to the glowing coral and press the left mouse button to pick it up.
Best Early Game Lucifer Rotsac Locations in Subnautica 2
Currently, Subnautica 2 early access has been released; however, you’re free to explore the various biomes in the game. You don’t need to go very far away since the Lucifer Rotsac is found underwater and close to the starter regions.
According to our testing, we have found this item in the coral-heavy regions with dense orange flora. These areas often feature clusters of star-shaped coral formations. Furthermore, during the day, the Lucifer Rotsac stands out because of its vivid orange color, which is in contrast to the cool oceanic blue environment.
One of the smartest strategies is to explore areas slightly away from your starting pod, and not dive deep enough that it will punish your oxygen levels. However, if you have found Silver in Subnautica 2 and have already crafted the torch, underwater exploration during the night becomes far more rewarding while finding these Lucifer Rotsacs due to their orange glow.
Lucifer Rotsac Uses in Subnautica 2
Once you have collected enough Lucifer Rotsac, you can craft rubber and grease with it. Crafting rubber is straightforward. Return to the Lifepod and access the Fabricator on your right. Now, follow the steps to use a Lucfer Rotsac in Subnautica 2:
- Left-click on the Fabricator. Then, click on the second Resources icon on the left.
- The Rubber icon will pop up as a black roll. Left-click on it to view the recipe, and you will notice that it requires 2 Lucifer Rotsacs.
- Simply left-clicking on the Rubber icon will craft the material for you and consume 2 Lucifer Rotsacs.
Similarly, you can make a bunch of items using a Lucifer Rotsac in Subnautica 2. As of now, we have explored the regions far enough to find that Grease can be crafted using 1 Lucifer Rotsac. As we explore further, we will add more items that can be made using a Lucifer Rotsac in this guide.
Alongside these items, copper also turns out to be one of the most useful materials in the game, and learning how to find copper in Subnautica 2 becomes crucial.
So, what other materials are you having a hard time finding in Subnautica 2? Let us know down in the comments section.
Yes, Lucifer Rotsac are harvestable materials and generally respawn over time in Subnautica 2. So, revisiting the same areas after some time can allow you to gather more Lucifer Rotsac.
Rubber is used in crafting the basic fins, standard air tank, and other materials in Subnautica 2.