Dreams of the Deep

What does the quest Dreams of the Deep give? The Nautilon Chamber, where you build the Nautilon submarine, the blueprint of its High-Power Sonar, and the parts of an underwater base; across its 5 parts it ends with the Lost Bathysphere, an Exosuit Appearance Override.

How it starts

The quest opens after you finish the first mission of The Purge, in the story of The Artemis Path: your starship picks up a decayed signal asking for help nearby.

The steps

Each part is one entry of the log, and the next opens when it ends. The table gives every step as the log names it, with the hint the game shows under it, and on a part's last step everything that part gives along the way.

Part	Step	Hint	Gives
1	Investigate the signal	The starship has intercepted a strangely decayed signal, requesting those who hear it to investigate a nearby location.
1	Install the Underwater Protection upgrade module	Open the inventory and select the upgrade module
2	Follow the signal trace	The signal both begged for and warned away a rescue attempt.
2	Construct the Nautilon	The crashed ship contained blueprints for a submarine.	Nautilon Chamber, Marine Shelter, Hydrothermal Fuel Cell
3	Explore the depths	Test the Nautilon by exploring the deep.
3	Locate the aquatic structure	The Nautilon has detected a repeater signal emanating from beneath the waves.
3	Build the High-Power Sonar	The abandoned radio structure contained blueprints for a High-Power Sonar.	Solar Mirror, High-Power Sonar
4	Use the High-Power Sonar to locate the survivors	The High-Power Sonar allows the Nautilon to pinpoint aquatic structures and wrecks.
4	Reach the freighter crash site	The High-Power Sonar has detected a signal ping from a large wreck.	Large Glass Panel, Moon Pool Floor, Glass Tunnel, L-Shaped Glass Tunnel, T-Shaped Glass Tunnel, X-Shaped Glass Tunnel, Vertical Glass Tunnel, Watertight Door, Square Deepwater Chamber, Deepwater Chamber
5	Follow the survivor's signal	Use the High-Power Sonar to detect abandoned structures on the seabed
5	Trace the survivors across the ocean	Use the High-Power Sonar to detect abandoned structures on the seabed
5	Find the remains of the crew	Use the Scanner to search for crew's final position	Lost Bathysphere

Every step in the order the log shows it, with the hint under it; what a part gives stands on its last step.

What the items do

Everything the quest hands over, with the description the game gives it.

Item	What it does
Nautilon Chamber	An advanced, fully-airlocked docking station for the Nautilon submarine.
Marine Shelter	An emergency survival module.
Hydrothermal Fuel Cell	A high thermal energy fuel, contained within a standardised fuel cell. Used to fuel the Humboldt Drive that powers the Nautilon submarine.
Solar Mirror	A specialist optical component. Employing an impossibly polished surface, this mirror is able to selectively filter different wavelengths of light, changing its reflective pattern based on nearby magnetic fields.
High-Power Sonar	A high-detail sonar device, capable of upgrading the scanner technology aboard a Nautilon-class submarine to Analysis Visor levels, pinning to the HUD all information typically revealed by the Analysis Visor.
Large Glass Panel	A window made from self-cleaning, UV-treated, hermetically sealed glass.
Moon Pool Floor	A holographic moon pool hatch. Allows easy access into and out of aquatic environments.
Glass Tunnel	Pressurised, reinforced glass tunnels for deep-sea construction.
L-Shaped Glass Tunnel	Pressurised, reinforced glass tunnels for deep-sea construction.
T-Shaped Glass Tunnel	Pressurised, reinforced glass tunnels for deep-sea construction.
X-Shaped Glass Tunnel	Pressurised, reinforced glass tunnels for deep-sea construction.
Vertical Glass Tunnel	Pressurised, reinforced glass tunnels for deep-sea construction.
Watertight Door	A compression-sealed, standard door suitable for all rooms and corridors.
Square Deepwater Chamber	A square alternative to the core module for base construction, providing a generous central space on which to expand.
Deepwater Chamber	The core module for base construction, providing a generous central space on which to expand.
Lost Bathysphere	A haunted Exosuit Appearance Override. Even once removed, the wearer will forever hear the whispering call of the deep ocean...

Every item the quest gives, in the order it comes, with the game's own description.

The High-Power Sonar is also a blueprint of the Space Anomaly. What it and the other Nautilon modules do is in the Nautilon modules guide.