Tidelight: the lighthouse logo glowing over a pixel-art reef

Dive deep. Haul it home. Rebuild the harbour.

Pilot a little sub down a new reef every dive, swim out to net fish and gather what grows on the rock, then bring it all home. Fill a walk-in aquarium, rebuild a storm-wrecked harbour one building at a time, and go a little deeper until the lighthouse shines again.

๐Ÿ  91 species ๐ŸŒŠ Seven zones ๐ŸŽฎ Controller & Steam Deck ๐ŸŒ 31 languages
The story

A storm took the harbour.

The pier still stands, and so does the little yellow sub.

Dive the reef below, bring home what you find, and raise the harbour again one building at a time. Somewhere in the keeper's lost logbook is what really happened the night of the storm. ๐Ÿ’›

How it plays

Dive, haul, rebuild, repeat

Every dive is a little adventure, and every trip home makes the harbour a bit cozier.

1Dive

  • The crane lowers your sub into a reef that's new every dive.
  • Seven zones down past 900 m, each with a rule of its own: kelp currents, stinging fire coral, caves where your lamps reach less far, vents that blast hot water.
  • Watch your battery and your air. Push too far and you're towed home, losing part of the haul, never your progress.

2Haul

  • Swim out as the diver to net the fish you meet, from clownfish to coelacanths, and the odd golden one.
  • Gather shells, kelp, coral and crystals from the rock, and open the chests tucked away in the reef.
  • Sharks are an obstacle, not a killer: a bite costs air or a dent in the hull.

3Explore

  • Squeeze the diver through crawls no sub fits.
  • Wash rubble away with a water jet and find the hidden rooms behind it.
  • Lost logbook pages and the town's keepsakes wait in the deep.

4Rebuild

  • Six storm-wrecked buildings to raise again, in any order you like, each growing bigger as you upgrade it.
  • Spend your haul on a better sub and a better suit, and go a little deeper.
  • Bring the whole harbour back, then keep diving for as long as you like.
The aquarium

Your own walk-in aquarium

Every fish you bring home can swim in your hall. Visitors wander past the tanks, and your fish earn coins every minute you play. Nothing you neglect ever comes to harm.

Walk the hallVisitors stop by your favourite tanks.
Feed, polish, tendA quick button, or a little game for a bigger bonus.

The reef

Seven zones, all the way down

The reef is new every time you dive, and every zone has its own fish, treasures and a rule of its own.

Features

Lots of little things to love

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91 species to find

From clownfish to coelacanths, and keep an eye out for the rare golden ones.

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A walk-in aquarium

Dress every tank your way: its water, its floor, its backdrop and the treasures you bring up.

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Rebuild the harbour

Six buildings, in any order, that grow bigger with every upgrade.

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The keeper's logbook

Find the lost pages and piece together the night of the storm.

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A Reef of the Day

A new reef every dive, and once a day the same reef for everyone.

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Made for the couch

Plays fully on a controller with your pad's own prompts, and runs well on Steam Deck.

Come dive with us! ๐Ÿคฟ

Tidelight is made by one person at Mossglow Games. A wishlist on Steam is the kindest way to help, and you'll hear the moment it launches.