ABYSM
0M SUNLIGHT ZONE

0 M · Sea level

ABYSM

A dive to the bottom of the sea.

Sink from the sunlit surface all the way down to the floor of the Challenger Deep — 10,935 m — meeting the real creatures that live at each depth on the way.

Begin the descent
scroll to descend

No goals. No timers. No combat.

Just you, a headlamp, and the slow weightless drift into the dark.

Put on headphones, turn the lights down, and descend.

Zone 01

Sunlight Zone

0 – 200 m

Warm, sunlit waters where most ocean life thrives.

Pixel-art manatee

3 M  ·  Sunlight Zone

Manatee

A gentle “sea cow” that grazes seagrass and surfaces every few minutes to breathe.

Pixel-art clownfish

37 M  ·  Sunlight Zone

Clownfish

Lives unharmed among a sea anemone’s stinging tentacles, which guard it from predators.

Pixel-art orca

99 M  ·  Sunlight Zone

Orca

The ocean’s top predator; pods hunt as a team and speak their own dialects.

Zone 02

Twilight Zone

200 – 1,000 m

Fading blue gloom — cold, dim, lit by living glow.

Pixel-art lanternfish

500 M  ·  Twilight Zone

Lanternfish

Maybe the most abundant vertebrate on Earth, glowing with rows of light organs.

Pixel-art giant squid

650 M  ·  Twilight Zone

Giant Squid

A real sea monster — rarely seen alive, it can grow as long as a school bus.

Zone 03

Midnight Zone

1,000 – 4,000 m

Eternal black, near-freezing, crushing dark.

Pixel-art anglerfish

1,040 M  ·  Midnight Zone

Anglerfish

Dangles a glowing lure to draw prey into total darkness.

Pixel-art gulper eel

3,060 M  ·  Midnight Zone

Gulper Eel

A huge balloon-like mouth lets it swallow prey larger than itself.

Pixel-art wreck of the RMS Titanic

3,800 M  ·  Landmark

RMS Titanic

The wreck has rested on the seafloor here since 1912.

Pixel-art dumbo octopus

3,952 M  ·  Midnight Zone

Dumbo Octopus

Flaps ear-like fins to “fly” through the deep — the deepest-living octopus.

Zone 04

The Abyss

4,000 – 6,000 m

Frigid, pitch-black plains under immense pressure.

Pixel-art sea pig

4,500 M  ·  The Abyss

Sea Pig

A plump pink sea cucumber that walks the abyssal mud on tube-foot “legs.”

Pixel-art fangtooth

4,700 M  ·  The Abyss

Fangtooth

Has the largest teeth, for its body size, of any fish in the ocean.

Zone 05

Hadal Zone

6,000 – 10,935 m

Deepest trenches: crushing, lightless, barely alive.

Pixel-art wreck of the USS Johnston

6,241 M  ·  Landmark

USS Johnston

The deepest shipwreck ever found, lost in WWII’s Battle off Samar.

Pixel-art hadal snailfish

8,336 M  ·  Hadal Zone

Hadal Snailfish

The deepest fish ever filmed; its jelly-like body withstands the crushing pressure.

Pixel-art hadal amphipod

10,322 M  ·  Hadal Zone

Hadal Amphipod

A shrimp-like scavenger thriving at the very bottom of the trenches.

10,935 M · Challenger Deep

The bottom of the ocean.

You made it all the way down. This is as deep as the planet goes.

Free

Dive the surface down to 1,000 m — the Sunlight & Twilight zones, ~30 creatures.

$2.99 once

Unlock the Deep. The Midnight, Abyss & Hadal zones to the trench floor, ~45 more creatures, and the deep landmarks. No subscriptions, no ads.

Coming soon — iPhone & iPad

Hand-made pixel art · procedurally generated ambient audio · gentle haptics · full game-controller support.