Lithium in Subnautica 2 is one of the most important resources you’ll need as you progress through the game. While common materials like Titanium and Copper are easy to gather near your Lifepod, Lithium is much rarer and often hidden in dangerous areas. Despite the risks, collecting this resource is essential if you want to unlock advanced equipment and improve your survival chances.
In this guide, we’ll cover the best Lithium locations, how to farm it efficiently, and what you can craft with it.
Why Lithium in Subnautica 2 Is Important
Lithium becomes a key resource once you start crafting more advanced technology. It is primarily used to create Plasteel Ingots, which are required for several important upgrades and structures.
As your exploration takes you deeper into the ocean, you’ll need stronger equipment and larger oxygen reserves. That’s where Lithium comes into play. Without it, progression can slow down significantly.
Some of the most valuable items that require Lithium include:
- Plasteel Ingots
- High Capacity Air Tank upgrades
- Portable Oxygen Generators
- Various late-game crafting components
Because of its importance, learning where to find Lithium in Subnautica 2 should be one of your early priorities.
The First Lithium Location: The Great Jaw
For most players, the earliest source of Lithium is a dangerous area known as the Great Jaw.
This massive clam-like structure can be found roughly 280 to 300 meters from the Lifepod. Inside its central core, you’ll discover Lithium deposits that can be mined using the Sonic Resonator. However, reaching them is far from easy.
The Great Jaw is surrounded by pink and purple tendrils. Touching these triggers the creature’s defensive mechanism, causing the mouth to close and release deadly acid. If you’re not prepared, you can lose your life within seconds.
Before attempting a run, make sure you bring:
- A Sonic Resonator
- Extra oxygen supplies
- Basic Fins or mobility upgrades
- Air Bladders for emergencies
Many players also build a small outpost nearby with a bed or respawn point. This minimizes the punishment if something goes wrong.
Once inside, quickly break the Lithium deposits, collect the materials, and escape before the Jaw closes completely.
Farming Lithium Safely in the Great Jaw
The Great Jaw remains one of the fastest early-game sources of Lithium, but efficiency is important.
A useful trick is to position your character against a wall before using the Sonic Resonator. The tool creates knockback when mining deposits, and this can accidentally push you into the tendrils. Staying against a solid surface helps maintain control.
You should also memorize the layout during your first trip. Future farming runs become much easier once you know exactly where the deposits are located.
Although risky, the Great Jaw provides enough Lithium to craft your first major upgrades.
The Best Late-Game Lithium Farming Area
As you advance through the story, a much safer and more profitable Lithium source becomes available.
Most Lithium deposits are located around the Tadpole Pens region and the nearby volcanic cave systems. These areas are found within the Zezuran Desert biome and contain significantly larger amounts of the resource.
Unlike the Great Jaw, these caves allow you to gather multiple deposits during a single expedition.
However, several requirements must be met before entering:
Unlock Heat Tolerance
The Zezuran Desert contains extreme temperatures that gradually damage your character. You’ll need the Heat Tolerance adaptation before exploring the area safely.
Build the Tadpole Vehicle
The distance between the Lifepod and the Tadpole Pens is considerable. The Tadpole vehicle makes travel much faster while providing additional protection from hostile creatures.
Bring a Sonic Resonator
Large Lithium nodes still require the Sonic Resonator for extraction. Without it, you won’t be able to harvest most deposits.
Tadpole Pens: The Ultimate Lithium Farming Spot
Once you reach the Tadpole Pens, Lithium becomes much easier to obtain.
The surrounding caves contain numerous deposits, often clustered near thermal vents. Players can gather large quantities in a single trip, making this area the preferred endgame farming location.
The main danger comes from the volcanic environment itself. While Heat Tolerance protects you from the biome’s ambient temperature, some vents remain hazardous if approached too closely.
Taking your time and exploring carefully will reward you with enough Lithium to support all future crafting projects.
What to Craft With Lithium in Subnautica 2
After collecting a healthy supply of Lithium, you’ll gain access to several powerful upgrades.
The most common use is crafting Plasteel Ingots. These advanced materials are required for many high-tier recipes and progression systems.
Lithium is also used in:
- High Capacity Air Tank upgrades
- Portable Oxygen Generators
- Advanced building components
- Future technology unlocks
Because demand increases throughout the game, it’s worth stockpiling Lithium whenever possible.
Final Thoughts on Lithium in Subnautica 2
Finding Lithium in Subnautica 2 can be challenging at first, but the effort pays off quickly. The Great Jaw offers the earliest opportunity to obtain this valuable resource, while the Tadpole Pens and Zezuran Desert become the best long-term farming locations later in the game.
If you’re planning to upgrade your gear and survive deeper expeditions, gathering Lithium should remain a top priority. Once you unlock access to the volcanic cave systems, maintaining a steady supply becomes much easier, allowing you to focus on exploration and progression instead of resource shortages.
