Build it floor by floor
Display Tanks, Research Labs, Kelp Cafés, Glass Tunnels and whole-floor Grand Aquariums. Visitors ride the lift down and every floor fills a bubble of coins to pop.
Science is the mission, tourism pays the bills, and the ocean occasionally springs a leak. Build tanks, labs and glass tunnels, send subs to find 54 adorable creatures, and dig all the way down to the Hadal Zone.
Free to play when it launches. Want a heads-up? Email us and we'll let you know.
Display Tanks, Research Labs, Kelp Cafés, Glass Tunnels and whole-floor Grand Aquariums. Visitors ride the lift down and every floor fills a bubble of coins to pop.
From Lemon Clown Gobies to Cockatoo Squid, Harp Sponges and ghostly Sea Lilies. The deeper you dive, the stranger your neighbours get.
Send subs exploring while you're away. They come home with postcards and new species. Then the big question: study it in a lab, or show it off?
Hammer a leak, scrub algae off the glass, prime an O₂ pump or sweep up a boba spill. Fix it yourself for free, or pay the crew.
Pilot a tiny RC sub through glowing deep-sea caves, dodge the jellies and grab glow orbs for a coin bonus across the whole station.

Five zones, from the Sunlit shallows to the Hadal trench. Every pressure hull opens new creatures and new upgrades, and the Bedrock Annex keeps going after that.
54 species across 5 zones. Some only turn up on the longest sub trips. Can you fill the Codex?
Bubble Clownfish
Royal Tang
Puff the Pufferfish
Moon Jelly
Green Sea Turtle
Ruby Seahorse
Coral Crab
Sunflower Star
Manta Ray
Lemon Clown Goby
Pajama Cardinalfish
Mandarin Dragonet
Lanternfish
Hatchetfish
Chambered Nautilus
Vampire Squid
Rainbow Comb Jelly
Barreleye
Sea Angel
Giant Oarfish
Rosy Boarfish
Ribbon Snipefish
Pinecone Fish
Anglerfish
Cockatoo Squid
Gulper Eel
Giant Isopod
Sea Pig
Siphonophore
Frilled Shark
Yeti Crab
Velvet Whalefish
Button Fangtooth
Telescopefish
Tripod Fish
Abyssal Grenadier
Faceless Cusk
Ruby Helmet Jelly
Alarm Jelly
Casper Octopus
Bigfin Squid
Ribbon Acorn Worm
Abyssal Basket Star
Harp Sponge
Hadal Sea Spider
Trench Spire Snail
Hadal Prawn
Ghost Sea Lily
Xenophyophore
Ethereal Snailfish
Supergiant Amphipod
Hadal Scale Worm
Trench Anemone
Stalked TunicateFathom Station is free to download and play. There are optional pearl packs and cosmetics (room themes, sub liveries, hats), plus optional rewarded videos you can watch for a speed-up or a few pearls. There are no forced ads.
iPhone, iPad and Android phones and tablets. It's played in portrait, one-handed.
Yes. Rooms keep earning and subs keep exploring for up to 12 hours while the app is closed, and Director Finch has a little gift waiting when you come back each day.
No. The game plays offline. A connection is only used for optional ads, purchases and anonymous gameplay stats.
No account is needed. Your station is saved on your device. Purchases can be restored from the Shop.
Have a look at the help page or email justanerdgaming@proton.me. We read everything.
Free to play when it launches. Want a heads-up? Email us and we'll let you know.