Tidefind: Diving Adventure

Tidefind is an underwater adventure game about diving for lost treasure. Swim through six ocean regions, send out sonar pulses to find buried artifacts, dig them up and fill your own museum, one discovery at a time.

How a dive works
Every dive is a short trip with a set amount of air. Your bag holds only a few finds, and oxygen drains faster the deeper you go, so you decide when to surface. Running out of air simply ends the dive, and you keep everything you found. Back on the boat, your finds turn into coins and experience for better gear and a higher diver rank.

Free with ads; optional Premium removes ads
All six regions are free to play, with all 120 artifacts, the six stories, 30 marine animals to photograph, the eco missions and every piece of gear. The deeper regions open as your diver's rank and gear grow. A short ad can play when you leave the results after a dive, never during one. You can also choose to watch an ad on the map for one hour of Treasure Hour, which doubles the coins you earn.
Premium is a single one-time purchase (A$4.99 in Australia; Google Play shows your local price). It removes the ads between dives for good and makes Treasure Hour permanent: coins from finds, duplicate sales, photos, missions and stories are doubled. It is not a subscription, and nothing else is for sale. If you bought the game's one-time purchase before this update, you already have Premium.

Six ocean regions
- Coral Bay: colourful reefs and a gentle start
- Kelp Forest: towering golden kelp and seadragons
- Sunken Ruins: a Roman seaside town beneath the waves
- Arctic Ocean: icebergs and a lost polar ship
- Volcanic Zone: hot vents and Bronze Age treasures
- Deep Trench: take the submersible into the dark

Scan, dig and collect
Ping your sonar, swim to the sparkle and hold to dig. There are 120 artifacts in six collections: coins, pottery, tools, jewellery, statues and art, and ship parts. Each one comes with a short note on its history.

Six stories inspired by real history
The clues you dig up open six stories of four chapters each: a merchant ship lost in a storm in 1783, a lighthouse keeper's daughter, a lost polar expedition, a family escaping the eruption of Thera and more. The characters are fictional; the history around them is real.

A Marine Log to fill
Photograph 30 species, each with a fact, from clownfish and leafy seadragons to narwhals and deep-sea anglerfish. Schools of fish swim through every region too.

Help the ocean recover
Collect litter, replant coral and kelp, free animals caught in ghost nets and place science sensors. Eighteen eco missions make each region healthier.

Gear and ranks
Upgrade your oxygen tank, sonar, dive suit, camera, tool kit and storage, then earn the submersible. Climb five diver ranks, from Beginner Diver to Ocean Legend, and pick from eight suit colours.

Good to know
- Made for players aged 9 and up
- Portrait play, in short or long sessions
- Plays offline; ads, the consent check and the optional purchase need a connection
- Ads come from Google AdMob and are set up for children: child-directed, rated G at most and non-personalised
- No accounts and no chat
- The artwork was made with AI image tools

Small discoveries make a bigger ocean.