Subnautica 2 Copper Guide: Best Farming Spots & Locations
Best copper farming locations in Subnautica 2. Cave-by-cave breakdown with distances from the Lifepod, plus what copper is used for and how to identify deposits.
Why Copper Is Your Biggest Bottleneck
Copper is the resource that gates your entire early game. Basic Batteries need copper. Copper Wire needs copper. Scanners, Flashlights, Habitat Builders, Wakemakers — all of them need a Basic Battery, and every Basic Battery eats 2 Copper. You’ll craft dozens of batteries before you’re done.
The problem is that copper doesn’t sit on the ocean floor like Titanium does. It hides in caves, stuck to walls and ceilings where you can’t see it unless you’re actively looking up. This guide shows you exactly where to find it.
How to Identify Copper
Copper deposits appear as brownish-orange mineral chunks embedded in stone surfaces. They protrude from cave walls and ceilings — never from the floor. If you’re staring at the ground in a cave, you’re looking in the wrong direction.
Visibility improves with a Flashlight, which ironically requires copper to build. Your first few copper runs will be in the dark. Swim slowly, look up, and let your eyes adjust.
Best Early-Game Copper Locations
Spot 1: The Lifepod Cave (0 meters — You’re Already Here)
The cave directly beneath your Lifepod is your first copper source. No swimming required beyond diving straight down.
This cave also contains Acidic Raion plants and Quartz fragments. You can get everything you need for your first Basic Battery and Scanner in a single dive from this one cave.
What to expect: 3-5 copper nodes on the walls. Tight passages but no predators. Limited depth — you can do this without any oxygen upgrades.
Why start here: It’s free. You’re standing on top of it. Grab copper, Acidic Raion Pouches, and Quartz in one trip and you’ll have a Scanner and Flashlight within minutes.
Spot 2: Coral Dome Cave (30 meters East)
Swim 30 meters east of the Lifepod and look for the orange coral dome formation. Dive underneath it and you’ll find a cave entrance leading to a more extensive tunnel system.
What to expect: More copper than the Lifepod cave. Nodes on both walls and ceiling. Multiple chambers with copper in each one.
Why go here: This is your workhorse copper cave for the first few hours. It’s close, it’s safe, and it has enough copper to keep your battery production running.
Spot 3: Strong Current Cave (130 meters East)
Swim 130 meters east past the Coral Dome and you’ll hit a cave entrance near a noticeable water current. Push through the current to enter.
What to expect: Multiple ceiling and wall nodes. Larger breakable formations that drop 2-3 copper each. Deeper passages with better yields.
Why go here: This is the best early farming spot by volume. The formations here drop more copper per node than the closer caves. Bring a Flashlight — it’s darker.
Spot 4: Caves Near Camp One (276 meters North-Northeast)
Camp One is one of the first colonist structures you’ll discover. The surrounding area has several cave entrances, and the caves underneath contain copper alongside silver deposits.
What to expect: Mixed copper and silver nodes. Moderate depth. Some passages are narrow.
Why go here: You’re probably heading to Camp One for blueprint fragments anyway. Grab copper on the same trip.
What Copper Crafts Into
Here’s every recipe that needs copper, so you know how much to stockpile:
Direct Copper Uses
| Item | Copper Needed | Other Materials | Station |
|---|---|---|---|
| Basic Battery | 2 | 1 Acidic Raion Pouch | Fabricator |
| Copper Wire | 1 | — | Fabricator |
| Copper Ingot | 3 | — | Processor |
Items That Need Copper Products
| Item | Copper Product | Other Materials | Station |
|---|---|---|---|
| Scanner | via Basic Battery | 2 Titanium, 2 Quartz | Fabricator |
| Flashlight | via Basic Battery | 2 Titanium, 1 Quartz | Fabricator |
| Habitat Builder | via Copper Wire + Basic Battery | 2 Titanium, 1 Glass | Fabricator |
| Wakemaker | via Basic Battery | 1 Silver, 1 Wiring Kit, 1 Grease | Fabricator |
| Wiring Kit | via Copper Wire | 1 Silver | Fabricator |
| Repair Tool | via Basic Battery | 2 Titanium | Fabricator |
A single Scanner costs 2 Copper (for the battery) plus 2 more Copper indirectly through components. A Habitat Builder needs copper for both its battery and its Copper Wire. Plan for 8-12 copper just to build your basic toolkit.
Copper Farming Efficiency Tips
Look Up, Not Down
I keep saying this because it’s the single biggest mistake new players make. Copper is on walls and ceilings. If you’re swimming along the floor of a cave, you’re missing 80% of the deposits.
Bring Extra Oxygen
Copper caves are dark and disorienting. You’ll swim deeper than you planned, lose track of the exit, and suddenly realize your oxygen is low. Build a Standard Air Tank before serious copper runs.
If you haven’t built an Air Tank yet, use Oxygen Tunics (glowing blue flowers) as breathing checkpoints. Several grow near cave entrances.
Use the Flashlight
Once you build your first Flashlight, copper runs become dramatically more efficient. Brownish-orange chunks blend into dark cave walls — a Flashlight makes them obvious from across the chamber.
Yes, building a Flashlight requires copper. Yes, that’s a chicken-and-egg problem. Do your first 2-3 copper runs in the dark to build the Flashlight, then every run after that is faster.
Mark Caves with Beacons
Drop a Beacon at the entrance of every productive copper cave. Name them something useful — “Copper East 1” or “Good Cave.” When your supply runs low, you’ll know exactly where to go without retracing your exploration.
Resources Respawn
Copper deposits respawn after enough time passes. Every cave you’ve mined will eventually refill. Set up a rotation between 3-4 marked caves and you’ll never run out.
Leave Inventory Space
Don’t swim into a copper cave with a full inventory. Drop or store non-essential items at your base first. Nothing is more frustrating than finding a copper-rich chamber and having no room to carry it.
Mid-Game Copper: Beyond the Caves
Metal Farms
Once you reach mid-to-late game, you can build Metal Farms at your base. These are base modules that generate resources over time when powered and seeded with an ore type.
Plant Copper in a Metal Farm, supply 20 energy per farm, and wait. When a node appears, blast it with your Sonic Resonator to harvest. Renewable copper without leaving your base.
Metal Farms require Mangalloy Alloy and Axum Bacterial Culture to build — both late-game materials. But once established, they solve the copper shortage permanently.
Copper Ingots
When recipes start calling for Copper Ingots (3 Copper each at the Processor), your copper consumption spikes. Stock up before you start building advanced electronics and base modules.
Early Game Copper Rush: Step by Step
Here’s the fastest path to building your essential toolkit:
- Dive under the Lifepod — grab 3-5 copper + Acidic Raion Pouches + Quartz
- Surface and craft: Basic Battery → Scanner → Flashlight (if you have enough copper)
- Swim 30m east to Coral Dome cave — grab 5-8 more copper with Flashlight
- Craft: Second Basic Battery → Habitat Builder
- Swim 130m east to Strong Current cave — stock up on 10+ copper for reserves
- Build your first base and store excess copper in a Locker
After this sequence you’ll have your core tools built and a copper reserve for future crafting. Total time: about 30-45 minutes depending on how quickly you find the cave entrances.
Copper is the one resource where having “too much” early on doesn’t exist. Every piece you collect now saves you a dive later.