Subnautica 2: All Base Upgrades Checklist

Base-Building Overview

The checklist is located below this introductory text.

Everything here is crafted with the Habitat Builder. Costs can change when you resize pieces in the build UI. We list default costs from the in-game menus.

Related Checklists

Open the Subnautica 2 100% Completion Hub. See also Biomes & Locations, All Vehicles, and Materials & Resources.

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Standard Elements

Base Pieces

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Base Pieces

✓		Item	Description
		Corridor Biome: Base Base Piece	Effect: Circular tunnel connecting multiple rooms. Materials: 2× Titanium
		Room Biome: Base Base Piece	Effect: A simple square room. Materials: 5× Titanium
		Hatch Biome: Base Base Piece	Effect: Door to and from the base. Materials: 1× Titanium, 1× Quartz
		Window Biome: Base Base Piece	Effect: A window you can put on your rooms or tunnels to make them see-through. Materials: 1× Glass
		Nook Biome: Base Base Piece	Effect: Extra space that can be attached to the room. Materials: 3× Titanium, 2× Glass
		Half Round Room Biome: Base Base Piece	Effect: A small semi-circular room with a large window. Materials: 5× Titanium, 5× Glass
		Moonpool Biome: Base Base Piece	Effect: Hub for your Tadpole, where you can safely park it inside your base. Materials: 5× Titanium

Divisional

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Divisional

✓		Item	Description
		Interior Wall Biome: Base Divisional	Effect: Cosmetic divider for large rooms. Materials: 2× Titanium
		Interior Arch Biome: Base Divisional	Effect: Cosmetic divider for large rooms. Materials: 1× Titanium
		Interior Door Biome: Base Divisional	Effect: Cosmetic divider. Materials: 3× Titanium, 1× Glass, 1× Copper Wire
		Ladder Biome: Base Divisional	Effect: Traversal methods between vertical rooms. Materials: 2× Titanium

Vehicles

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Vehicles

✓		Item	Description
		Tadpole Dock Biome: Base Vehicles	Effect: Tadpole will park and hover here. Must be placed on a wide Moonpool. Materials: 2× Titanium Ingot, 1× Silver Ingot, 2× Copper Wire
		Vehicle Fabricator Biome: Base Vehicles	Effect: Craft Tadpole and its chassis here. Must be placed on a wide Moonpool. Materials: 2× Titanium Ingot, 1× Copper Ingot, 2× Glass

✓

Item

Description

Tadpole Dock

Biome: Base

Vehicles

Effect: Tadpole will park and hover here. Must be placed on a wide Moonpool.

Materials: 2× Titanium Ingot, 1× Silver Ingot, 2× Copper Wire

Vehicle Fabricator

Biome: Base

Vehicles

Effect: Craft Tadpole and its chassis here. Must be placed on a wide Moonpool.

Materials: 2× Titanium Ingot, 1× Copper Ingot, 2× Glass

Interior Facilities

Production

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Production

✓		Item	Description
		Fabricator Biome: Base Production	Effect: Critical survival system. Craft basic recipes here. Materials: 1× Titanium, 1× Copper, 1× Quartz
		Processor Biome: Base Production	Effect: Processes minerals into ingots and refined materials over time. Materials: 2× Titanium, 1× Mild Acid, 1× Copper Wire
		Biolab Biome: Base Production	Effect: Modifies Adaptations. Materials: 3× Titanium, 1× Copper Wire, 1× Mild Acid
		Modification Station Biome: Base Production	Effect: Upgrades your vehicles. Materials: 2× Titanium, 2× Celestine, 2× Copper

Storage

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Storage

✓		Item	Description
		Wall Locker Biome: Base Storage	Effect: Small storage space. Materials: 2× Titanium
		Floor Locker Biome: Base Storage	Effect: Larger storage space. Materials: 3× Titanium, 1× Quartz
		Tailing Chest Biome: Base Storage	Effect: Even larger storage space. Materials: 3× Titanium
		Wall Rack Biome: Base Storage	Effect: Holds one item. Materials: 1× Titanium, 1× Copper

Lighting

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Lighting

✓		Item	Description
		Small Ceiling Light Biome: Base Lighting	Effect: Interior light. Materials: 1× Titanium, 1× Copper
		Rectangular Ceiling Light Biome: Base Lighting	Effect: Interior light. Materials: 2× Titanium, 1× Copper
		Wall Light Small Biome: Base Lighting	Effect: Interior and exterior light. Materials: 1× Titanium, 1× Copper
		Wall Light Large Biome: Base Lighting	Effect: Interior and exterior light. Materials: 2× Titanium, 1× Copper
		Axum Wall Lamp Biome: Base Lighting	Effect: Interior and exterior light. Materials: 1× Celestine, 1× Titanium

Power

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Power

✓		Item	Description
		Battery Terminal Biome: Base Power	Effect: Recharges batteries. Materials: 2× Titanium, 2× Quartz, 1× Copper Wire
		Power Cell Terminal Biome: Base Power	Effect: Recharges power cells. Materials: 3× Titanium, 3× Copper, 1× Wiring Kit
		Bioreactor Biome: Base Power	Effect: Converts biomaterial into power. Materials: 2× Titanium Ingot, 2× Copper Ingot
		Power Storage Biome: Base Power	Effect: Harnesses excess power for later use. Materials: 1× Germanium, 3× Titanium, 2× Salt

Habitat Systems

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Habitat Systems

✓		Item	Description
		Biobed Biome: Base Habitat Systems	Effect: Backup respawn point. Materials: 3× Titanium, 1× Glass, 1× Copper Wire
		Noa Terminal Biome: Base Habitat Systems	Effect: Noetic advisor. Materials: 3× Titanium, 1× Copper Wire, 1× Glass
		Scanner Station Biome: Base Habitat Systems	Effect: Locates resources. Materials: 1× System Chip, 3× Titanium, 1× Wiring Kit
		Time of Day Display Biome: Base Habitat Systems	Effect: Shows time of day. Materials: 1× Titanium, 1× Enameled Glass, 1× Copper

Exterior Facilities

Power

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Power

✓		Item	Description
		Solar Panel Biome: Base Power	Effect: Generates up to 8 Energy per second from sun rays. Only during day and works best in shallow waters. Materials: 1× Titanium, 2× Quartz
		Thermal Plant Biome: Base Power	Effect: Generates up to 16 Energy per second from hot temperature waters. Materials: 3× Titanium, 3× Copper, 3× Gold
		Hydroelectric Turbine Biome: Base Power	Effect: Generates 12 Energy per second. Place in currents. Materials: 3× Titanium, 3× Copper, 3× Silver
		Power Transmitter Biome: Base Power	Effect: Extends Energy range. You can chain them to connect your base to your energy generators. Materials: 1× Titanium, 1× Copper

Lighting

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Lighting

✓		Item	Description
		Exterior Wall Light Biome: Base Lighting	Effect: Exterior wall light. Materials: 1× Titanium, 1× Copper
		Spotlight Biome: Base Lighting	Effect: Exterior floodlight. Materials: 1× Titanium, 2× Copper

✓

Item

Description

Exterior Wall Light

Biome: Base

Lighting

Effect: Exterior wall light.

Materials: 1× Titanium, 1× Copper

Spotlight

Biome: Base

Lighting

Effect: Exterior floodlight.

Materials: 1× Titanium, 2× Copper

Utility

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Utility

✓		Item	Description
		Habitat Beacon Biome: Base Utility	Effect: Generates a signal to help you locate your base. Materials: 1× Titanium

✓

Item

Description

Habitat Beacon

Biome: Base

Utility

Effect: Generates a signal to help you locate your base.

Materials: 1× Titanium

Utility

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Utility

✓		Item	Description
		Beacon Biome: Base Utility	Effect: Marks its location where thrown. Materials: 1× Copper, 1× Titanium
		Portable Locker Biome: Base Utility	Effect: Carryable, deployable small storage. Materials: 4× Titanium
		Portable Oxygen Generator Biome: Base Utility	Effect: Portable oxygen generator. Requires a battery. Materials: 3× Titanium, 2× Lithium
		Work Light Biome: Base Utility	Effect: Mobile light source. Materials: 3× Titanium, 2× Quartz
		Dive Elevator Biome: Base Utility	Effect: Underwater elevator. Materials: 4× Titanium, 2× Copper, 2× Quartz

Cultivation

Cultivation Structures

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Cultivation Structures

✓		Item	Description
		Growbed Biome: Base Cultivation Structure	Effect: Garden bed that can be used to farm. Materials: 1× Titanium
		Metal Farm Biome: Base Cultivation Structure	Effect: Will naturally accumulate minerals from the surrounding environment. Materials: 1× Mangalloy Ingot, 1× Axum Bacterial Culture

✓

Item

Description

Growbed

Biome: Base

Cultivation Structure

Effect: Garden bed that can be used to farm.

Materials: 1× Titanium

Metal Farm

Biome: Base

Cultivation Structure

Effect: Will naturally accumulate minerals from the surrounding environment.

Materials: 1× Mangalloy Ingot, 1× Axum Bacterial Culture

Plantables

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Plantables

✓		Item	Description
		Pent Biome: Base Plantable	Materials: 1× Pent
		Macaron Sponge Biome: Base Plantable	Materials: 3× Fibrous Pulp
		Mimic Pylon Biome: Base Plantable	Materials: 5× Fibrous Pulp, 4× Copper
		Freesia Flower Biome: Base Plantable	Materials: 3× Fibrous Pulp
		Acid Raion Biome: Base Plantable	Materials: 1× Medical Gel Sac
		Cradle Shortroot Biome: Base Plantable	Materials: 1× Lucifer Rotsac
		Necrolei Cyst Biome: Base Plantable	Materials: 1× Necrolei Cyst
		Cherimoya Rotsac Biome: Base Plantable	Materials: 1× Cherimoya Rotsac

Furniture & Decor

Furniture

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Furniture

✓		Item	Description
		Dining Chair Biome: Base Furniture	Materials: 2× Titanium
		Lab Chair Biome: Base Furniture	Materials: 2× Titanium
		Stool Biome: Base Furniture	Materials: 1× Titanium, 1× Rubber
		Dining Table Biome: Base Furniture	Materials: 3× Titanium, 1× Glass
		Single Bed Biome: Base Furniture	Materials: 2× Titanium, 3× Fiber
		S Shelf Biome: Base Furniture	Materials: 2× Titanium
		Trashcan Biome: Base Furniture	Materials: 2× Titanium
		Small Crate Biome: Base Furniture	Materials: 1× Titanium
		Sign Biome: Base Furniture	Materials: 1× Titanium, 1× Copper
		Reaper Leviathan Biome: Base Furniture	Materials: 1× Titanium

Tailing Furniture

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Tailing Furniture

✓		Item	Description
		Tailing Table Biome: Base Tailing Furniture	Materials: 2× Titanium
		Tailing Drum Biome: Base Tailing Furniture	Materials: 2× Titanium, 2× Fiber Mesh
		Tailing Barrel Biome: Base Tailing Furniture	Materials: 2× Titanium
		Coral Jar Biome: Base Tailing Furniture	Materials: 2× Coral Chippings
		Small Coral Jar Biome: Base Tailing Furniture	Materials: 1× Coral Chippings
		Tailing Jar Biome: Base Tailing Furniture	Materials: 1× Fiber, 1× Salt
		Hanging Tailing Jar Biome: Base Tailing Furniture	Materials: 2× Fiber, 1× Salt
		Tailing Rug Biome: Base Tailing Furniture	Materials: 3× Fiber

Axum Furniture

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Axum Furniture

✓		Item	Description
		Small Axum Jar Biome: Base Axum Furniture	Materials: 1× Glass, 1× Copper
		Axum Jar Biome: Base Axum Furniture	Materials: 1× Glass, 2× Copper
		Tall Axum Jar Biome: Base Axum Furniture	Materials: 1× Glass, 3× Copper

Posters

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Posters

✓		Item	Description
		Keep Calm Poster Biome: Base Poster	Materials: 1× Titanium
		Just Keep Swimming Poster Biome: Base Poster	Materials: 1× Titanium
		Safety First Poster Biome: Base Poster	Materials: 1× Titanium
		Scout Ray Poster Biome: Base Poster	Materials: 1× Titanium
		Zezura Poster Biome: Base Poster	Materials: 1× Titanium
		New Life Poster Biome: Base Poster	Materials: 1× Titanium
		Painted Tree Poster Biome: Base Poster	Materials: 1× Titanium
		CHBC Live Poster Biome: Base Poster	Materials: 1× Titanium
		Pioneer Program Poster Biome: Base Poster	Materials: 1× Titanium
		Lost River Poster Biome: Base Poster	Materials: 1× Titanium

Decorations

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Decorations

✓		Item	Description
		Wall Unit Small Biome: Base Decoration	Materials: 1× Titanium
		Wall Panel Biome: Base Decoration	Materials: 1× Titanium
		Wall Unit Large Biome: Base Decoration	Materials: 3× Titanium
		Wall Vent Biome: Base Decoration	Materials: 2× Titanium
		Wall Vent Large Biome: Base Decoration	Materials: 3× Titanium

Exterior Decorations

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Exterior Decorations

✓		Item	Description
		Roof Pump Biome: Base Exterior Decor	Materials: 1× Titanium
		Roof Pump Double Biome: Base Exterior Decor	Materials: 2× Titanium
		Roof Cylinder Biome: Base Exterior Decor	Materials: 1× Titanium
		Roof Panel Large Biome: Base Exterior Decor	Materials: 2× Titanium
		Roof Antenna Biome: Base Exterior Decor	Materials: 1× Titanium
		Roof Antenna Large Biome: Base Exterior Decor	Materials: 3× Titanium
		Roof Listening Dish Biome: Base Exterior Decor	Materials: 3× Titanium

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