Prismtide game icon Free game · Android & Windows

Prismtide Rayn's Deep Rescue: a pixel-art adventure under the sea

Clio the clownfish has been taken by Dredmaw, the megalodon of the Abyss. Guide Rayn, a tiny fish with every colour of the rainbow, from the sunny reefs of Coral Bay down to the darkest depths of the ocean: swim in every direction, Rainbow Dash through your enemies, blow up the reef walls and find the hidden pearls.

Get it onGoogle Play Read the story

Free to play · No ads · No account · Worlds 1–3 free, Full Ocean unlock on Android · English and Italian

5underwater worlds
20levels, 2 of them secret
7skins for Rayn
2008the year it all began
Rayn swimming through Coral Bay in Prismtide
The story

A tiny fish, a huge journey

In the sunny waters of Coral Bay lives Rayn, a little fish wearing every colour of the rainbow. His best friend is Clio, a brave clownfish: together they explore every reef, every cave, every wreck.

Then one night the sea goes dark. Dredmaw, the megalodon of the Abyss, sweeps through the bay… and when the water clears, Clio is gone.

Rayn is small. But Rayn is fast, and he never gives up. From the kelp forests to a sunken ship, from the Twilight Trench to the bottom of the Abyss, he follows the trail of his friend, meeting grumpy crabs, moray eels, jellyfish, message bottles from Clio and a very talkative computer that has been underwater for far too long.

All the way down to the Abyss: Rayn is coming, Clio!

How does it end? You will find out down there, in the dark. Let's just say that not every monster is what it seems.

Dredmaw the megalodon charging in the Abyss
Worlds

Five worlds, from the sun to the Abyss

Every world has its own music, its own enemies and a new mechanic to learn.

Coral Bay
1Free

Coral Bay

4 levels + 1 secret

Sunny reefs, crabs and puffers. Learn to swim, dash and blow up the reef walls with dynamite. And yes, there is a secret level… on the Moon.

Kelp Forest
2Free

Kelp Forest

4 levels

Towering kelp, moray eels and water currents that push you around. At the end of the forest waits the famous blue crab.

Sunken Ship
3Free

Sunken Ship

4 levels + 1 secret

A wreck full of crates to smash and hidden rooms. Somewhere on board, an old computer named Karen is still waiting for someone to talk to.

Twilight Trench
4 Full Ocean

Twilight Trench

4 levels

The light fades away. Jellyfish drift in the dark, and only Rayn's rainbow glow shows the way.

The Abyss
5 Full Ocean

The Abyss

2 levels

The deepest point of the ocean and Dredmaw's lair: the final battle and the ending of the story.

Features

Simple to learn, full of secrets

A classic 2D adventure made for touch screens, keyboard and controller.

Swim in every direction

Rayn moves freely underwater: no jumps to time, just smooth swimming with the touch joystick, the keyboard or a controller.

Rainbow Dash

A burst of rainbow speed that knocks out crabs, puffers and eels and smashes the wooden crates of the shipwreck.

Three pearls per level

Every level hides three pearls in caves, behind walls and inside currents. Find them all for a perfect ocean map.

Enemies with character

Crabs and red crabs, puffers that inflate, wavy moray eels, drifting jellyfish and the blue crab that charges when it sees you.

Darkness and light

In the Twilight Trench and in the Abyss the only light comes from Rayn: explore carefully, something is moving in the dark.

A boss to remember

Dredmaw charges across the arena. Make him crash into the wall, then strike with a Rainbow Dash while he is dazed. Three times.

Seven skins

Collect coins to unlock Ember, Sunny, Coral, Mint and Midnight. The legendary Aurora leaves a trail of sparkles behind Rayn.

Secrets and easter eggs

Message bottles from Clio, a mission to the Moon, hidden rooms and an old friend from the Starlyware family.

Offline and ad-free

Prismtide plays without an internet connection, has no ads and no account, and saves your progress on your device.

Screenshots

Prismtide at a glance

Title screen
Title screen
Coral Bay
Coral Bay
Kelp Forest and its eels
Kelp Forest and its eels
The famous blue crab
The famous blue crab
Karen, deep in the shipwreck
Karen, deep in the shipwreck
The dark Twilight Trench
The dark Twilight Trench
Dredmaw, the megalodon
Dredmaw, the megalodon
Skins and the Full Ocean unlock
Skins and the Full Ocean unlock
The development

From Oceano (2008) to Prismtide (2026)

Prismtide is the remake of the very first game Gianluca Grasso, the founder of Starlyware, ever made. It took eighteen years and four attempts.

Game Maker (2008) Godot 4 GDScript Pixel art Google Play Billing
  1. 2008

    Oceano

    Gianluca was eight years old when he made Oceano with Game Maker: a rainbow fish, crabs, puffers, coins, boulders and a door at the end of every level. His first game, made for fun and played by family and friends.

  2. 2014

    The first remake

    Six years later he rebuilt it from scratch with new levels and mechanics. The project grew, then stopped halfway.

  3. 2023

    New sprites

    Another attempt with brand-new sprites and a cleaner structure. Again, real life got in the way and it was never finished.

  4. 2026

    Prismtide

    This time Oceano is finally complete. Rebuilt in Godot 4 with new pixel art, music and sound effects, five worlds, a real story and a final boss, it gets a new name that works in every language: Prismtide, the tide of a prism, like Rayn's colours. It is available for Android and, for free and complete, for Windows.

The original Oceano sprites from 2008 compared with the new Prismtide sprites from 2026
The 2008 sprites (top) and the 2026 ones (bottom): the same characters, eighteen years later. Rayn has kept his colours and his little fin.

Karen, the voice assistant Gianluca published in 2015, makes a cameo in the Sunken Ship. You can talk to her on the web too.

Free & privacy

Fair to play, respectful of your data

  • On Android, worlds 1–3 (14 levels) are free, with no time limits and no energy bars.
  • Full Ocean is a one-time purchase that unlocks worlds 4 and 5, the final boss, the ending and the legendary Aurora skin.
  • The optional Supporter Pack unlocks every skin and supports an independent developer.
  • The Windows version is complete and free, with no purchases.
  • No ads, no account, no analytics: Prismtide collects no personal data and saves your progress only on your device.
  • Purchases go through Google Play, which can ask for a password or a parent's approval.
FAQ

Frequently asked questions about Prismtide

Yes. On Android you can play the first three worlds (14 levels) for free. The optional Full Ocean purchase unlocks the last two worlds and the ending. There are no ads and no subscriptions.

Worlds 4 and 5 (Twilight Trench and The Abyss), the final battle against Dredmaw, the ending of the story and the legendary Aurora skin. You pay once and keep it forever: if you reinstall the game, tap "Restore purchases".

Yes. The Windows version of Prismtide is complete and free, with every world unlocked and no in-app purchases.

Yes. Prismtide works without an internet connection. The connection is only needed to make or restore a purchase on Google Play.

Yes. The violence is cartoonish (enemies bounce away and disappear), there are no ads, no chat and no data collection. Purchases are handled by Google Play, where parents can require a password or approval through Family Link.

On a phone, use the virtual joystick on the left to swim and the button on the right for the Rainbow Dash. On a PC, use the arrow keys or WASD and the space bar, or a controller.

The game is available in English and Italian.

An easter egg. Karen is a voice assistant made by Starlyware in 2015, and in Prismtide she is an old computer stuck in the Sunken Ship. She has a lot to say, especially about the Wi-Fi down there.
Prismtide game icon

Dive in with Rayn

Download Prismtide for free and start the rescue.

Get it onGoogle Play Windows version: coming soon
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