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Dive into a mysterious abyss filled with danger and ancient relics. Explore its depths, uncover artifact formulas, keep a damaged laboratory running, and try to escape alive.

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About Abyssonaut

Abyssonaut - is a survival exploration game with base building and resource management elements, where you play as the last surviving employee of a laboratory that was studying a mysterious abyss.

Lore

You are one of the last surviving members of a laboratory that discovered the abyss and began to investigate it.

[Gif the abyss]

After several expeditions, the laboratory was heavily damaged, and the path back was sealed. During their research, the team discovered the first unidentified entity, which they named the .

[Gif the appraiser]

The Appraiser accepts various items retrieved from the abyss:

resources
artifacts
relics

By evaluating their value and consuming them, it can create anything that is already known. An item becomes known only after its formula has been discovered.

The team had no choice but to descend deeper into the abyss to gather more value and repair the laboratory.

And you… were left behind.

Explore, Gather, and Survive

[Gif the gamePlay]

Descend into the mysterious abyss:

Discover valuable materials, and collect resources
manage your hunger and thirst
search for edible food and drinkable water

Discover Resource Formulas and Artifact Blueprints

[Gif of a research lab]

There are two main ways to craft items:

Crafting using laboratory equipment

(Laboratory equipment requires maintenance and resources)

Crafting using the Appraiser

Both methods require the crafted item to be known.

Power and Life Support

[Gif the generator]

The entire laboratory runs on generators.

Without power, systems shut down.

You must:

Monitor energy production and consumption
Maintain generators
Carefully distribute electricity between modules

[Gif the distributor]

Building Bases in the Abyss

[Gif the base example]

Build bases directly within the abyss to:

Prepare for deeper expeditions
Defend yourself from threats
Store resources and artifacts
Increase safety

Steam data © 2026 Valve Corporation. Trademarks are property of their respective owners.

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