Completion Checklist for Subnautica: Below Zero

Completion Checklist

Listed below is a completion checklist of events and locations you can visit in Subnautica: Below Zero. Note: The list is full of spoilers.

Early Game (Part 1)

- Find the Drop Pod and acquire basic tools.

- Visit Sanctuary Zero and download AL-AN. Once acquired, you can complete the rest of the game in any order.

Delta Island and Surroundings (Part 2)

- Visit Delta Island, meet Maida for the 1st time, and explore Delta Station.

- Explore surrounding biomes: Thermal Spires, Lilypad Islands, Purple Vents, Tree Spires, Deep Twisty Bridges.

- Explore nearby abandoned sites: Omega Lab, Koppa Mining Site , Outpost Zero. Some of these are also related to Parts 2 and 3.

Story Events Related to Maida (Part 3)

- Meet Maida for the 1st time on Delta Island.

- Scan 3 fragments of Parallel Processing Units from the 3 Crashed Ships.

- Meet Maida for the 2nd time at her base and receive the Test Override Module blueprints.

- Reprogram the Satellite Tower

- Visit Maida at her greenhouse.

- Re-visit her underwater base.

Story Events Related to your Sister (Part 4)

- Explore the Omega Lab.

- Explore the Glacial Basin.

- Find Phi Robotics Lab (I.e. Snowfox Base) in the Glacial Basin.

- Visit Outpost Zero and the Architect Gate Base.

- Find the Kharaa Antidote in Spy Penguin Cave #3.

- Inject the Kharaa Antidote into the Frozen Leviathan.

Story Events Related to AL-AN (Part 5)

- Scan AL-AN's skeleton from the Deep Lillypad cache.

- Scan AL-AN's organs from the Crystal Caves cache.

- Scan AL-AN's tissues from the Arctic Spires cache.

- Construct AL-AN's body from the 3 body fragments.

- Visit the Architect Gate Base.

Optional Tasks and Locations

- Build Seatruck and Prawn Suit and their upgrades.

- Visit Koppa Mining Site.

- Find the Architect Artifacts.