Dive to the bottom of the Mariana Trench, 11,034 metres down. Short dives, a searchlight against the dark, rare samples, strange creatures and a small yellow bathyscaphe that goes a little deeper after every upgrade. What waits at the bottom? You will find out at the end. Players gave Bathyscaphe a 100% positive score. Released October 16, 2026. Top tags include Casual, Adventure, Roguelike, Exploration, Stylized, Atmospheric, Lovecraftian, Management, Indie, and Simulation.
Dive to the bottom of the Mariana Trench, 11,034 metres down.
Dive to the bottom of the Mariana Trench, 11,034 metres down. Short dives, a searchlight against the dark, rare samples, strange creatures and a small yellow bathyscaphe that goes a little deeper after every upgrade. What waits at the bottom? You will find out at the end.
Developed by DARTKIS · Published by SOZDAY GAMES
Player Review Breakdown
Bathyscaphe has about 1 positive and 0 negative player review out of a total 1. We'll add a detailed breakdown here when there are more reviews.
100%
positive of 1 player review
Full Game Details
From the Devs
Every dive goes deeper than the last
You pilot the research bathyscaphe B-01. The winch lowers you into the ocean, the air lasts a couple of minutes, and the hull only holds so much pressure. Catch samples in your searchlight, scan creatures nobody has seen before and come back up with a full hold.
Build the bathyscaphe up, part by part
In the shipyard your finds turn into credits, and credits turn into new parts: a stronger hull, more oxygen tanks, a bigger propeller, a longer searchlight, sonar, a manipulator arm and a faster winch. Every upgrade shows up on the 3D model, and every upgrade opens a few hundred more metres of darkness.
Five zones, from the reef to the hadal trench
Sunbeams fade into blue twilight, then into total darkness where the only light comes from jellyfish, photophores and your own lamp. The light, the colour, the sound and the creatures all change on the way down.
Light is your tool
The searchlight finds samples, scans new species and scares off predators. Anglerfish and giant isopods punish carelessness, but they are afraid of a bright beam. The sonar pings the dark and shows what hides in it.
A field journal worth filling
Every creature and sample you find goes into a paper journal as a photo. Unknown entries stay black silhouettes until you meet them. The lab studies the species you have logged and keeps earning credits even while the game is closed.
Something is waiting at the bottom
Past 10,400 metres the trench goes quiet. That is where the expedition ends.
Features
Incremental game built on short dives of one to three minutes
5 depth zones down to 11,034 m: Reef, Twilight, Midnight, Abyss, Hadal
15 creatures and 15 kinds of samples, each with its own photo in the field journal
9 upgrade lines, all visible on the 3D bathyscaphe in the hangar
