Top 5 Best Base Locations in Subnautica 2

How to Choose a Base Location

Your main base location in Subnautica 2 determines your access to resources, power, and safety for the entire playthrough. The ideal base is near multiple biomes, has room for expansion, offers a power source, and is far from Leviathan patrol routes. These five locations are the best in the game, ranked by overall value.

5. The Safe Shallows Hub

The safe shallows are where every player starts, and a base here is the safest option. The water is shallow, clear, and free of major predators. The downside is limited deep resources and weak solar power potential at depth. Build here for your first outpost, then expand to a deeper main base later.

Pros: Zero predator threat, central location, easy power with solar.

Cons: Far from deep resources, limited expansion room.

4. The Grassy Plateaus Edge

The grassy plateaus bordering the safe shallows offer flat terrain, nearby kelp forests for titanium and stalker teeth, and moderate depth for solar power. Sand Sharks are the main threat but are easy to avoid. This is an excellent mid-game base location with good access to multiple biomes.

Pros: Flat build surface, near kelp and plateaus resources, moderate depth.

Cons: Sand Shark presence, still far from deep zones.

3. The Mushroom Forest

The mushroom forest is a beautiful, relatively safe biome with flat ground between the giant mushroom trees. It offers access to the mountains, dunes, and lost river entrance, making it a strategic crossroads. Bonesharks are present but manageable. The large trees provide natural shelter for a scenic base.

Pros: Central location, scenic, access to multiple biomes, flat terrain.

Cons: Bonesharks, moderate depth limits solar efficiency.

2. The Lost River Junction

Building a base at the entrance to the lost river gives you direct access to the deepest resource biomes. This is the best forward operating base for late-game mining. The lost river has thermal vents for power, and you are minutes from Lithium, Nickel, Kyanite, and diamond deposits. The main risk is Ghost Leviathans in the area.

Pros: Direct access to deep resources, thermal power, central to lost river network.

Cons: Ghost Leviathan threat, requires depth-rated vehicles to reach, limited solar.

1. The Shallows-to-Reef Transition Zone

The top-ranked base location is the transition zone between the safe shallows, kelp forest, and grassy plateaus. This area gives you access to three biomes worth of resources within swimming distance, shallow enough for strong solar power, flat enough for large bases, and safe from all major predators. From here you can quickly reach the grand reef and lost river via the nearby drop-offs. It is the best all-around main base spot in the game.

Pros: Three-biome access, excellent solar power, predator-free, room for expansion, quick deep-zone access.

Cons: Can get crowded with base modules; plan your layout carefully.

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