Puzzles and Progression Locks
Subnautica 2 puzzle guides for progression locks, alien structures, power routing, door logic, terminal clues, and troubleshooting.
12 of 14 guides shown
Tadpole Pens Keycode Guide
A spoiler-controlled Tadpole Pens walkthrough for investigating the area, reading keycode clues, and opening the door cleanly.
Includes playable video evidence, screenshot checkpoints, and a step route you can follow in-game.
Route value
Door and keycode puzzle anchor for the Tadpole Pens objective.
Old Habitat Walkthrough
A spoiler-aware Old Habitat walkthrough focused on approach safety, entrance checks, scanning order, and progression blockers.
Includes playable video evidence, screenshot checkpoints, and a step route you can follow in-game.
Route value
Door, interior, and blocker checklist for the Old Habitat route.
Alien Observatory Door and Turbine Guide
A puzzle walkthrough framework for activating the Alien Observatory door, reading turbine steps, and checking room-state changes.
Includes playable video evidence, screenshot checkpoints, and a step route you can follow in-game.
Route value
Alien Observatory door and turbine anchor for objective-state tracking.
Alien Power Plant Walkthrough
An Alien Power Plant walkthrough for deep entry, power devices, activation rooms, route safety, and final state confirmation.
Includes playable video evidence, screenshot checkpoints, and a step route you can follow in-game.
Route value
Power Plant walkthrough anchor for repair blockers, activation-state checks, and final room proof.
Alien Structure Puzzles
A careful route framework for reading alien structures, terminals, symbols, and locked interior routes in Subnautica 2.
Includes playable video evidence, screenshot checkpoints, and a step route you can follow in-game.
Route value
Alien room logic anchor for scan-first puzzle clearing.
All Angel Comb Puzzles
A spoiler-aware Angel Comb puzzle route for symbol reads, room-state changes, reward checks, and safe retry planning.
Includes playable video evidence, screenshot checkpoints, and a step route you can follow in-game.
Route value
Angel Comb puzzle anchor for symbol reads, state changes, and reward confirmation.
Axum Door Puzzle Guide
A practical Axum Door puzzle walkthrough for power routing, symbol checks, turbine state, and final door verification.
Includes playable video evidence, screenshot checkpoints, and a step route you can follow in-game.
Route value
Axum Door puzzle anchor for power routing, turbine state, and final door verification.
Axum Power Plant Puzzle Guide
An Axum Power Plant puzzle guide for final power states, Axum Vision context, door checks, and controlled deep-route progression.
Includes playable video evidence, screenshot checkpoints, and a step route you can follow in-game.
Route value
Axum Power Plant anchor for final power routing, vision-state proof, and puzzle completion.
Cicada Wreck Lander Garage Guide
A route and checklist guide for the Cicada Wreck Lander Garage, including entry, databox checks, and safe exit habits.
Includes playable video evidence, screenshot checkpoints, and a step route you can follow in-game.
Route value
Wreck entry anchor for garage routing and databox checks.
Giant Alien Power Plant Guide
A route and puzzle guide for starting the Giant Alien Power Plant, reading activation rooms, and preserving the return path.
Includes playable video evidence, screenshot checkpoints, and a step route you can follow in-game.
Route value
Late-route puzzle anchor for power plant activation planning.
Observatory Door Puzzle Guide
An Observatory Door puzzle guide for objective panels, symbols, turbine activation, and verifying the unlocked path.
Includes playable video evidence, screenshot checkpoints, and a step route you can follow in-game.
Route value
Observatory door anchor for symbol reading, turbine checks, and door-state confirmation.
Power Routing Puzzles
How to read power-flow rooms, cable paths, terminals, and inactive devices without burning oxygen or missing progression clues.
Includes playable video evidence, screenshot checkpoints, and a step route you can follow in-game.
Route value
Power puzzle anchor for tracing room-state changes before interacting with terminals.
Reference cards
Quick notes for names you will see in these guides
These cards are lightweight reference notes, not precision map claims. Open a guide when you need the full video-based route.
Alien structures
Puzzle and lore spaces where access, power, item, or story locks can block routes.