Copper is the resource that unlocks everything in the early game of Subnautica 2. Without it, you cannot craft a Basic Battery, which means no Scanner, no Flashlight, and no real progression. The good news: two solid copper spots sit within swimming distance of your Lifepod from the very first minutes of the game, and you need zero special tools to grab it.
Where does copper spawn in Subnautica 2?
Unlike Titanium, which litters the ocean floor and is hard to miss, copper hides in underwater caves and coral enclaves. Copper deposits typically protrude from cave ceilings and walls, so scanning the floor won't help. Look up when you're inside any cave system.
Copper also appears attached to the walls of coral enclaves in shallow water. As noted by Beebom's testing, spawns are not guaranteed in every cave, but the areas near the Lifepod have a reliably high chance, especially early on.
Keep your eyes on the ceiling and upper walls inside any cave. Copper deposits hang down from above, not from the floor.
Copper on cave walls
Best early-game copper locations
Location 1: Directly below the Lifepod
The fastest copper in the game is straight down from where you start. There is a small circular hole in the seafloor beneath the Lifepod that leads into a shallow cave. Inside, you will find an Oxygen Tunic plant that keeps your air topped up while you explore, plus copper deposits on the walls.
This same cave also contains an Acidic Raion colony, which looks like a brain-like structure with a glowing green circle. Cut it with your Survival Multitool to get the Acidic Raion Pouch, the second ingredient you need alongside copper to craft a Basic Battery. There is also Titanium, a Portable Locker, and an Acidic Raion core that yields a Medical Gel Sac for First-Aid Kits. This single cave can set you up for your first full crafting session.
Location 2: 50 meters east of the Lifepod
Once you have cleared the cave below, head roughly 50 meters east. There is a larger cave system here with more copper deposits. The entrance pushes water upward in a natural current, which can throw you off, but you can swim around to find several crevices that let you enter from the side.
This cave holds more copper than the one directly below the Lifepod, making it the better farming run once you are comfortable with the area.
The electric plants near the Lifepod cave entrance can shock you. Approach carefully and use the Oxygen Tunic inside the cave to recover before pushing deeper.
What is copper used for in Subnautica 2?
Copper feeds directly into three early-game crafting recipes confirmed across sources:
The Scanner is gated behind the Basic Battery, which requires 2x Copper and 1x Acidic Raion Pouch. Getting copper fast means getting your Scanner fast, and the Scanner is how you unlock blueprints for everything else. Beebom's guide recommends hoarding copper early to make the mid-game significantly smoother.
After crafting the Scanner, returning to the Lifepod cave also yields a component for the Flashlight blueprint.
Copper is also needed for base-building later in the game. Farming a surplus in the early areas saves a lot of backtracking once you move into deeper zones.
How do you farm copper deposits later in the game?
Beyond the shallow caves, the ocean floor drops off further east of the Lifepod into significantly deeper water. IGN confirms that large copper deposits protrude from the ground in these deeper areas, but you need the Sonic Resonator tool to mine them. These deposits yield far more copper per run than the wall-mounted nodes in early caves.
At that stage of the game, copper becomes abundant as the main story pushes you into deeper, darker regions. The Sonic Resonator is also useful for mining other late-game resources, so unlocking it opens up silver farming spots and other material runs at the same time.
For more resources, materials, and crafting guides across the full game, the Subnautica 2 guide collection covers everything from salt farming to gold locations in the lava region.