NAUTILUS: ABYSSAL DESCENT

At the bottom of the world, humanity built a city beneath the sea.

Nautilus is a sprawling network of research stations, habitats, industrial facilities, transit systems, and deep-sea outposts scattered along the edge of a vast abyssal trench.

Then something went wrong.

Communications with the surface have failed. Power grids are collapsing. Entire facilities have gone dark. Transit routes are severed, survivors are scattered, and unexplained contacts are moving through the black water beyond the station lights.

You are not a predetermined hero.

Create your own character, choose your background, form relationships, explore the Nautilus Complex, repair failing systems, rescue—or abandon—survivors, pilot submersibles, walk the ocean floor, and uncover what happened beneath the abyss.

But the deeper you descend, the less certain reality becomes.

Some voices on the radio belong to the living.

Some belong to the dead.

And something beneath Nautilus has begun to answer back.

An open-world underwater survival-horror RPG focused on exploration, survival, relationships, psychological horror, mystery, player choice, and replayability.