Adventures of theUnderworldThe Game

Six hundred metres under the surface, the water is full of things that need saving and things that would rather you drowned. Take a breath. Go down anyway.

The descent — 40 m

Everything worth finding
is under something.

The story starts at the waterline and keeps going. Each dive takes you further from daylight: past the reef, past the wrecks, into the pressure where the beam of your torch stops before the dark does.

You swim, you drive, you fight on land when you have to. The ocean is the throughline — every mission starts or ends in the water.

Opening cinematic from the game — Opening cinematic

Second frame of the opening cinematic — Before the first dive

Who's down there — 180 m

The water is crowded.

Some of it swims alongside you. Some of it is waiting.

You

The diver

Swims, climbs, drives, and throws a punch when the situation calls for one. Health is a single bar and the surface is a long way up.

Companion

The dumbo octopus

Follows a path of its own and leads you to places you would have swum straight past. Get it out of the netting and it stays with you.

Sea life

Trout, turtles, dolphins

The water column fills and empties as you move through it. Schools drift, turtles hold their line, dolphins cut past on their own business.

Predator

Sharks

They spawn with everything else and they notice you. There is no weapon down here that solves a shark. Distance is the answer.

The diver freeing an octopus underwater — Cutting an octopus free

Octopus surrounded by bubbles in the water column — It follows you after that

Missions — 340 m

Four worlds,
one waterline.

The first two dives are open to everyone. The rest unlock together.

Dive 01 · open

Open water

Learn the swim controls, clear the debris field, and find out what the boats above you are doing.

Dive 02 · open

The island

Surface, get onto sand, and cross the interior on foot. The water is still the way out.

Dive 03 · unlocks with the full game

Military base

Hulls, patrols, and hardware that was never meant to be pointed at a swimmer.

Dive 04 · unlocks with the full game

The offices

Dry floors, glass, and the people who signed off on all of it.

Threats — 520 m

The boats know
you're down here.

Surface

Enemy yachts

They run the water above the dive site and turn the moment you break the surface. Some of them shoot back.

Ordnance

Torpedoes

Fired on a straight line and fast enough that you only get one read on it. Swim across the run, never along it.

Static

Water mines

Anchored, patient, and invisible until your torch is already on them. Contact ends the dive.

Boss

The lead yacht

Bigger hull, longer health bar, and it does not run out of things to fire. Take the escorts first.

A torpedo running through open water toward the diver — Torpedo run

Debris sweep — 700 m

Try the sweep.

A small piece of what the dives ask for: clear the debris out of the water and leave the mines alone. Move your pointer, or drag on a touchscreen — the collector follows.

Collected 0 Time 45s Hits 0

Debris sweep

Forty-five seconds. Collect every piece of debris you can reach and keep clear of the red mines — each one costs you three seconds.

Built for this page as a taste of the collection mechanic. The full version runs on mobile with swim controls, health, and a lot more water.

Gallery — 860 m