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Tadpole Pens
May 22, 2026 at 07:23 AM
Clarified this is a story location, not a creature breeding facility
The Tadpole Pens are a named story location in Subnautica 2. The site is an abandoned habitat reached after the player has gained the Heat Tolerance adaptation, with a keycode-locked door gating final entry. It is a place to explore as part of the Early Access story, not a creature-breeding facility, and despite the shared name it is distinct from the Tadpole vehicle.
The Tadpole Pens and the Tadpole submersible share part of a name but are two separate things. The Tadpole is the player's submersible vehicle. The Tadpole Pens are a fixed location on Proteus: an abandoned habitat the player visits during the story. The name should not be read as the place where the Tadpole vehicle is acquired, and the site is not a breeding pen for any creature.
Reaching the Tadpole Pens requires the Heat Tolerance adaptation, which lets the player survive the conditions on the approach. Final entry is gated by a keycode-locked door, making the Pens one of a small number of hard gates in a build that otherwise leans on traversal-driven progression. Without both the adaptation and the keycode, the habitat cannot be entered.
Requirement | Detail |
|---|---|
Heat Tolerance adaptation | Needed to survive the approach to the habitat. Acquired earlier through the Biosampler adaptation system. |
Keycode | Required to open the sealed door. Entry is blocked until the code is obtained. |
Inside, the Tadpole Pens are an abandoned habitat, left behind by earlier occupants and explored after the player works past the keycode lock. As a story location it sits in the same category as the other named sites the player uncovers across Proteus, contributing to the world's history rather than functioning as a vehicle bay or a breeding facility. Specific contents of the habitat are part of the in-build story and are tied to the Early Access chapter rather than to any vehicle-unlock flow.
The Tadpole Pens are present in the current Early Access build as a Heat-Tolerance-gated, keycode-locked story location. Any further additions to the site, or new connected locations, are not in the current build and have not been detailed beyond the broad Early Access and Development Roadmap framing.
The Tadpole vehicle, a separate subject despite the shared name.
The Colonist Logs lore arc.
The CICADA colony ship the Pioneers trace back to.
