The Alien Ruins aren't just another waypoint in Subnautica 2. They're the moment the game stops holding your hand. Cross the gorge, survive what's lurking in the open water, and suddenly you're in a harder biome with new materials, new objectives, and a Research Station that becomes your new home base. Players hitting this section for the first time are reporting it as the sharpest difficulty spike in the early access build, and for good reason.
The trigger and the 600-meter problem
The mission to reach the Alien Ruins unlocks after you investigate the Tadpole Pens. From that point, your objective is straightforward: cross an open seabed gorge and reach a destination over 600 meters to the east. The problem is what's between you and it.
The Collector Leviathan patrols that open water. This is the largest, most aggressive creature players will have encountered at this stage of the game, and it will chase you the moment you enter its territory. There's no clever trick to avoid it entirely.
The key here is your approach angle. Staying as low to the seabed as possible in your Tadpole and driving directly toward the Alien Ruins gives you the best chance of making it across with minimal damage. Alternatively, hugging the ocean surface works too. Either way, the Leviathan will likely hit you at least once. Keep moving, don't panic, and use the cliffs on the far side as cover once you arrive. Repair your vehicle there before doing anything else.
Before leaving, upgrade your Tadpole with the Scout Ray Chassis upgrade from the Vehicle Bay terminal. The blueprint is inside the Tadpole Pens. That extra speed and handling makes the crossing noticeably less punishing.
What to pack before you go
This trip is one-way in practice, even if it's technically reversible. The return journey requires surviving the same Leviathan crossing again, so you'll want to arrive prepared to set up a new base immediately.
Bring the following:
- Backup batteries and a spare power cell
- Food and drink supplies
- Healing items
- Base-building materials: quartz, titanium, copper, and silver
- Expanded inventory space from Biobed interactions if you haven't already
Skipping the inventory prep is the most common mistake players make here. Arriving at the Research Station with no building materials means another dangerous round trip.
Setting up at the Research Station
Once you reach the Alien Ruins, the Research Station is your first stop. Head inside and restore power by inserting a battery into the socket in the bedroom. Then interact with NOA in the command room. This unlocks a list of locations to visit for progression, and returning to NOA later gives you actual quest markers to follow.

NOA unlocks your next objectives
From there, four tasks should be your immediate priorities:
- Build a new base near the Research Station. Place a Hydroelectric Turbine in one of the natural currents nearby for a reliable power source. The Lifepod starting area is still accessible, but the commute is brutal.
- Scan and build the Modification Station near the Research Station entrance. This unlocks tool and vehicle upgrades that are gated behind this area.
- Find the Tadpole Depth Module in the cave beneath the Needler nest, 270 meters southeast of the Alien Ruins. This upgrade lets your Tadpole dive deeper, which is required for most of the new materials in this zone.
- Locate the Bioscanner inside the Cicada wreckage 500 meters southeast of the Research Station. This Scanner upgrade unlocks Biomods by scanning creatures and opens up a significant branch of progression.
New materials and why they matter
The Alien Ruins area introduces six materials that don't exist in the starting zone. All of them feed into the crafting and upgrade systems you'll be working with for the rest of the current early access content:
- Creature Enamel
- Celestine
- Conduit Crystal
- Atacamite
- Troilite
- Axum Bacterial Culture
What most players miss is that several of these are tied to the deeper dive depths unlocked by the Tadpole Depth Module. Getting that upgrade early isn't optional if you want to make progress. Our guides on how to get Atacamite and where to find Creature Enamel break down the exact farming spots for the two most requested resources in this area.
For players working toward the Feedback Resonator upgrade, Conduit Crystals are the bottleneck. They spawn around 1700 meters east near alien structures, which is a significant expedition from the Research Station. The full breakdown is in our Conduit Crystals location guide.
Here's the thing: the Alien Ruins section is where Subnautica 2 reveals its actual scope. The starting zone is a controlled introduction. Everything east of that gorge is the real game, and the survival games genre rarely delivers a transition this well-paced. Explore the full Subnautica 2 guide collection to stay ahead of what comes next.







