An indie developer is building a horror game around thalassophobia — the fear of deep water — and the premise is already circulating online. Titled There's Nothing Down There, it asks players to descend into a deep sinkhole, explore caverns using a sonar system, and pilot a small submarine through darkness. The clip that sells the idea is mostly quiet water and instrument readings, until one number and one question land.
A Hole in the Seabed
The opening image is simple and unsettling: a pale, rock-strewn stretch of seabed lit from above, with a wide dark pit at its centre. Nothing moves in frame — no wreck, no creature, and no explanation of what the pit is.
The view then shifts inside a small submersible. A fan hangs in the cabin, monitors glow on either side of the console, and a depth gauge sits in the middle. It reads 1.02M, and the hole is directly below.
That is the hook of the game: not a monster in the dark, but the decision to keep descending anyway. The pitch sets out three steps for the player:
- Descend into a deep sinkhole
- Explore caverns using a sonar system
- Pilot a small submarine through darkness
85 Kilometers Wide, Three Degrees Above Ambient
The two crew members trade readings rather than reassurances. One asks whether the thermal readings have shifted lately. The reply is that they have not, with the figure holding at 85 kilometers wide and sitting three degrees above ambient.
One voice calls it a geothermal goldmine, and possibly something more than that. Heat that high usually means instability — but neither of them knows what is holding the structure together, or how deep it goes.
What follows is a short negotiation about risk. Push on, and if it turns out to be a dead end, they turn back. It is framed as a deal between two people who still believe they can walk away from it. There is no swell of music and no jump scare here: just instruments humming and two people deciding.
Sonar, Darkness and a Rock Spire
Then the descent begins. The console numbers climb as the vessel drops — 6.10M, then 47M, then 59.2M — and the water outside shifts from blue to black.
The dive passes a yellow submersible drifting alone in open water with a light at its nose, then edging along a rock wall inside a cavern, then facing a tall spire of stone. The interior displays change with it. One screen paints a sonar return in concentric rings. Another throws a narrow green cone forward, cutting across the cabin windows. In some shots a red glow washes over the hull, bright enough to tint the whole frame.
The cockpit itself never changes: the same fan, the same dials, the same seat. Only the depth reading moves. That repetition is what makes the setting legible — the submersible is small, and everything outside it is not.
The Line That Closes the Trailer
The final beat is not a reveal. It is a question, and a name.
Stuart, are you seeing this?
The trailer ends there — no creature, no explanation, and no confirmation of what the sonar or the cameras picked up. For a game built on the fear of deep water, that may be the entire design: the unknown is left below the hull, implied rather than shown.
The project is being made by a solo independent developer, and the title does a lot of work. There's Nothing Down There reads as either a reassurance or a warning, depending on how long you have spent staring at a dark screen while a depth gauge ticks over on it.
For players who find open ocean more frightening than any monster, the appeal is easy to see. For everyone else, the question the clip leaves open — what exactly is down there — is the thing that would keep a viewer watching the sonar rather than the water.
What would make you keep descending: curiosity, or the fact that your colleague just said the heat usually means instability?
This story was edited from a publicly posted video; some details may not be independently verified. Source: Indie Game Joe.