DEEPGATETMDiving Company

Safety is our third-highest priority.

Design, test and pilot experimental submersibles, then run the salvage company that pays for them. Every part has honest numbers, crush depth is real, and every lost boat comes back as an engineering report.

Buy Early Access $14.99

1.0 Early Access
Windows 10 and 11
VR Quest 3 on Link
English only for now

The pitch

A lighthearted deep-ocean engineering simulator where you build experimental submersibles, take them down, and occasionally destroy them catastrophically, while building a company that can reach the deepest places on Earth.

parts in the dock: 60
jobs on the board: 110
lines of work: 18
people on the roster: 6
metres to the bottom: 10,920

A riveted submersible on the cradle in the vessel dock, orange ballast tanks slung beneath it — The vessel dock, with a boat on the cradle.

01 / Build it

Bolt it together. Check the numbers. Then get wet.

The vessel dock is where a boat is built part by part: pressure hulls, frames, ballast tanks, thrusters, batteries, sensors and tools, sixty parts in seven families. Every one has honest numbers. Crush depth is real, buoyancy is real, and the battery does not care how close you are to the crate.

Mirror and radial symmetry, undo, subassemblies, and balance markers for mass, buoyancy and thrust. The dock tells you everything before you get wet.

The dock's parts list open on the hull family, with the boat's numbers in the side panel — The parts list. Every hull has a crush depth and a price.

Standard Pressure Hull. "The one the brochure photographs."

Pressure Cylinder. "Cheaper per litre. Worse at being round."

Column Pressure Hull. "Stands on end and falls. Every other hull here swims; this one has stopped arguing."

From the parts catalogue

02 / Take it down

Flood the tank and ride it down.

Fly from the chase camera or the pilot's seat. Unbuckle and walk the cabin, work the controls on their fittings, open the hull cameras, ping the sonar.

In this world the only number that matters is how far down you are. The tape down the side of the screen is the one instrument you have to learn. This page has one too: look left.

Your marker: Where the boat is right now.
CLASS: The depth the boat is rated for. Below it, the dive is experimental.
CRUSH: Where the hull stops being a hull.
TARGET: Where the job is. If it sits past CRUSH, the boat is wrong for the job, and no careful flying fixes that.

The pilot's seat: brass gauges, a round viewport, the depth tape on the left of the screen — The pilot's seat, with the tape on the left.

The cabin with a hull camera monitor lit beside the viewport — Hull cameras on the cabin monitor.

A pressure hull at 263 metres, then the flash, the pieces and the rising air as it implodes

03 / Past CRUSH

You hear failure before you see it.

A hull that is unhappy creaks, then groans, then stops making any sound at all. Windows crack, cabins take water, and a decisive abort with the steel dropped is always the right call.

Dive record

Vehicle lost

Standard pressure hull failed at 263 m

Site: The Drop
Deepest: 263.0 m objective 285 m
Time: 00:23
Peak hull: 101%

Every loss ends in an engineering report naming the part that started it and the depth it went at, so the next boat is a correction rather than a guess. The company commends a decisive abort. Dead pilots file no reports.

04 / Run the company

A salvage outfit, six people, and a board of jobs nobody better-funded wanted.

110 jobs across eighteen lines of work, from tourism and film to cable repair, rescue, mining and records, at working depths from 8 m to the bottom of the deepest trench. Sail the tender between waters on the chart, refit her at the yard, watch the radar and the sound from Mission Control, and keep the books honest. Run it as CAREER, SCIENCE or SANDBOX.

The company tender at sea with submersibles alongside — The tender, with the fleet alongside.

The contract board listing jobs with their depths and pay — The contract board.

Mission Control: the island of Brinn on a globe with the dive plotted — Mission Control.

The tender under way on open water, a submersible hanging from her stern — Passage out to the job.

The roster is six people, and it is closed.

Each of the six changes a real number. Crew aboard a vessel that is lost go down with it, and the seat does not refill.

Marta HaleHull fatigue accrues slower.
Ben OkonkwoThe hotel draw is lower.
Rey VasquezMoves ballast faster.
Iris KestrelCertified deeper.
Sam DoylePaid more for a recovery.
Colette RenardHas her own price.

A hard-hat diver standing on white sand among giant kelp

05 / Not only boats

Put a diver over the side.

Five kits, each with its own gas and its own limits:

Breath-hold
Scuba, on air
Wet-lung
Trimix
Hard hat

Try FREE DIVE at any site with any boat and nothing at stake, or race the two CHALLENGE courses, Rust Route One and The Long Way Down, against the clock with a boat of your own.

TRAINING walks you through a first dive with the mate, and THE COMPANY MANUAL has the figures for everything else.

06 / The fleet on the cradle

Five hulls, five ideas about pressure.

Built in the dock from the same sixty parts. The hull sets the crush depth; everything bolted around it decides whether you get there and back.

Standard Pressure Hull

DG-01 Compact

"The one the brochure photographs."

Hull crush330 m
Diving Bell

Bell Test

"A steel ball and a hatch. Pressure was understood long before it was argued with."

Hull crush260 m
Bubble Hull

Interior Bubble

"The whole cabin is one clear sphere."

Hull crush513 m
Moulded Pressure Hull

Glass Modern Dome

"One continuous fairing. The engineering moved inside and the skin stopped telling you anything."

Hull crush640 m
Column Pressure Hull

Glass Column Dome

"Stands on end and falls."

Hull crush2,200 m

Hull figures from the game's parts catalogue. Windows, frames and everything else bolted on can fail first; the dock tells you which.

07 / Where the work is

From a seagrass lagoon to the Colossus Field.

The waters around the island of Brinn, shallow to deep. The ocean is vibrant and inviting near the top, and black, silent and mildly judgmental near the bottom.

12 mThe NurseryA seagrass lagoon and a reef crest
15 mSea Star HouseDivers living on the seabed for a month, out of coffee
20 mThe CathedralGiant kelp in the Narrows
24 mThe AquariumA reef wall on the Glass Banks
41 mThe Ghost FleetDozens of warships, the cargo still on deck
95 mHarbour Test PitWhere a new boat gets wet first
185 mThe Shelf BreakWhere the light starts to give up
300 mThe DropA wreck in the floodlights
430 mThe Cold SeepVents, chimneys and tubeworms
590 mThe Trench MouthThe way down opens
960 mThe Abyssal TerraceYour lamps are the only light
1,900 mThe Colossus FieldOnly the column hull reaches it

08 / Early Access, honestly

Whole enough for an evening and well beyond. Still being built.

Deepgate is made by one person, and the fastest way to make the ocean better is to hear from the people diving in it. Early Access is planned to run for about a year. Buy once: every Early Access update and the full release are included.

In it now

The vessel dock and sixty parts
Piloting, failure and the engineering report
The company: CAREER, SCIENCE and SANDBOX, 110 jobs
The chart, passages, the yard, Mission Control
Divers in five kits, FREE DIVE, two CHALLENGE courses
TRAINING and THE COMPANY MANUAL
Photo mode, records, quicksaves and reverts
Every key rebindable; Xbox-style pads and the DualSense
A separate VR build for Quest 3 on Link

Being built next

A smoother dock, closer to how a real yard works
Equipment that works and animates: arms, lift bags, tools
New parts from real submersible engineering
Danger in the cabin: faults mid-dive, fire, inspections
Diver dangers
More life, sea and weather
A black box: replay the dive that went wrong
Lower graphics settings for smaller cards
Achievements and cloud saves when the game reaches Steam

Known rough edges

Tested on one machine (an NVIDIA RTX card); smaller graphics cards are untested
The first start prepares shaders and can stutter for a minute
Some models are finished and some are stand-ins, and you will be able to tell which
Windows may warn that the publisher is unknown: "More info", then "Run anyway"
Flight sticks and other generic controllers are not supported

Plans follow what players find, so this list is not a promise of specific features. F8 in the game writes a report folder on your own machine; nothing is uploaded.

09 / What it needs

System requirements

As far as is known. The game has been tested on one machine; tell us what yours does.

OS	Windows 10 or 11, 64-bit
Graphics	A DirectX 12 card with Shader Model 6. Tested on an NVIDIA GeForce RTX card; smaller cards untested.
Storage	About 3 GB (a 1.9 GB installer)
Install	Installs to your user folder, no administrator rights needed
Input	Keyboard and mouse, Xbox-style controllers, PlayStation 5 DualSense (USB or Bluetooth)
VR	A separate build: Meta Quest 3 on Link, on the same PC
Language	English (interface and subtitles)
Online	None. No account, no launcher, nothing uploaded.

10,920 m / The counter

Deepgate Diving Company 1.0 Early Access

$14.99 USD

The game for Windows, and the separate VR build for Quest 3
Every Early Access update and the full release
A plain installer download: no DRM, no launcher, no account
A refund within 14 days if it is not for you

Tax included. Checkout is run by Stripe, which handles the payment and any sales tax or VAT as the seller of record, and can show the price in your own currency. Your card details go to Stripe, never to us.

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