In Development

Suns of the Abyss

An open-world first-person underwater adventure.

Exploration · PC · Unreal Engine 5

Genre

Exploration

Platform

Status

In Development

Engine

Unreal Engine 5

Suns of the Abyss is an open-world underwater exploration adventure set 10 miles beneath Earth's oceans and millions of years from now.

This long-forgotten world is yours to explore, experiment, and understand at your own pace and in no particular order.

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Inhabit other bodies, borrow unfamiliar senses

Every creature you meet can lend you their unique senses and ways to explore their world.

Each location can be seen, heard, and touched differently, depending on whose eyes, ears, and appendages you currently wield.

Every location holds a secret, a way to restore it to its former function, that only the right combination of creatures' skills can reveal.

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Real Stakes. Without danger or death.

The Lumen Fields are a playground, not an arena. Lose yourself in wondrous wandering without danger, death, or anything trying to end your run.

The stakes are real: you're actively engaged in saving the Lumen Fields.

But no violence or time pressure is necessary — just your own curiosity, wit, and experimental mind.

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A world you restore and reshape

Discover, repair, and tune each biome's artificial sun to reshape the world around it: its lights, vegetation, creatures, long-dormant machines, and more!

Every adjustment ripples outward and creates new play options, turning the Lumen Fields into an ever-changing waterscape you can revisit, rediscover, and refine.

The goal is still to discover and apply life's optimal parameters... but that doesn't mean you shouldn't just wander around, experiment, and see what happens!

How it starts

// Boot Log — Unit [Redacted] — T+??:??:?? — Year ?45.25?.653

I'm a hovering hunk of ancient junk. Lots of storage, not much knowledge.

Something woke me up in that tiny, derelict station roughly ten miles down...At least the data from that brutish, unpleasant central computer seemed to confirm those depths. But I don't trust it.

I also do not trust the station's consoles. They're not even remotely functional. They indicate it's been ?4624???577 years since their last software update.

Something prevents my cortical chip from interpreting that number properly. Why?

How long exactly since I was last functional? No idea. I wasn't designed to keep track of time. The central computer is rude and spits nonsense at me.

Apparently, that station sits over a place called the Lumen Fields. I vaguely recall that name from a banged-up memory allocation cluster. "A vast and glorious sanctuary of life sustained by a trinity of artificial stars."

I hear it in my head. The sales pitch seems sound. The reality is clearly grim. I am no science bot, but it's obvious the Lumen Fields are not exactly thriving. The ecosystems are ailing, on the verge of collapse. I don't understand all the numbers flashing red on the station's consoles and screens, but I know they're bad.

Now, I COULD just choose to power down and wait it out, right? After all, this isn't my problem. Even if it was, I no longer have access to that mission data.

Whatever my job designation was before, it could not have been "savior bot of all biomes and the life they contain."

But the central computer is grumpy and insistent that I do something. Did I mention how rude it was? I'd like to shut it up and go back to sleep, if only to make sure it doesn't boot me up again. Ever.

Then again, I am hearing an insistent banging on the rusty panels of the station, somewhere above the control stations. Somewhere...out there.Might as well go see what that's about before it's cyber-sleep time again...▊

What Awaits You

Playable Creatures

Six creatures. Six entirely different ways to experience the Abyss. Borrow their senses, their strengths, and their strange little personalities.

Playable Creature

The Grin Whale

◎SIGHT

That giant, smiling creature a very wide angle of view, but almost no peripheral awareness, so whatever falls outside her direct gaze may as well not exist. Like an octopus, she can see polarized light, which amplifies her perception of both colors and contrasts. As a result, her world is vivid, bright and shiny. Expressive and sensitive. She hates intense light sources. She is one, after all.

◌SOUND

The Grin Whale only hears low frequencies, the farthest spanning sonic registerShe produces plenty of them too, in the form of slow, rolling growls that travel for kilometers. Those sound waves are not released into the cold waters, though. They swirl, bounce and clash back and forth within her and in between her many sets of vocal chords

◆MOTION

She can travel fast and far, but is formidably large. Many passages are simply not options. Completely impervious to freezing temperatures. Actively dislikes warmth.

⊕PREHENSION

Whatever it hits, it destroys. Whatever it cannot immediately destroy, it hits again. Not a creature that solves problems carefully.

✦QUIRK

Loves abstract expressionism: not as a hobby, but as a genuine emotional framework for understanding the world. The Abyss, to a Grin Whale, is not a place. It is a painting in progress.

As The Grin Whale sees it

Screenshots & Art

The Grin Whale, your first (giant) friend...and exploration vessel

The Bekzins Medusa. See the world like a painting of the Polish Master

The Protagonist, a sentient AI, rebooted ?36.??4.?56 years after its last update

Full art reveal coming soon — follow us for updates.