• Fish Abyss - Build an Idle Ocean Aquarium 1
  • Fish Abyss - Build an Idle Ocean Aquarium 2
  • Fish Abyss - Build an Idle Ocean Aquarium 3
  • Fish Abyss - Build an Idle Ocean Aquarium 4

Fish Abyss - Build an Idle Ocean Aquarium

Build a thriving ocean sanctuary splashing with aquatic life - all while you listen to the calming sounds of the ocean as whale song echoes in a distant reef.

Hundreds of Fish to Collect

Discover all the fish in the sea and bring them to your aquarium. From koi and clownfish to majestic creatures that would never fit in your fish tank, such as dolphins, sharks and humpback whales and even more exotic species - we have them all to collect and grow at the tap of your finger!

The Worldโ€™s Largest Fish Tank

Dive into the worldโ€™s largest fishtank - your own aquarium sanctuary! Customise your underwater oasis with corals, seaweed, rocks and attract new species of fish to your deep sea aquarium in this relaxing underwater sim.

Journey into the Depths of the Ocean

Begin your adventure in a secluded reef as you discover your way through the depths of the aquamarine world, one tap at a time.

Relaxing Gameplay

A relaxing family simulator game full of life, build your beautiful virtual underwater tycoon where marine life can thrive - all as you listen to the zen music of whale songs in a distant reef.

Real Schools of Fish

The marine life in your reef will find friends and form schools of fish, just like real fish majestically weaving in and out of the coral (and avoiding sharks!) using our advanced behaviour simulator.

Care for Your Aqua Pets

Create the ultimate fish farm. Hatch eggs and feed your underwater creatures to level them up. Merge your fish to breed them into more special, unique pet fish.

Fish Abyss is completely free to play but some optional in-game items may require payment.

You must read and accept our Privacy Notice and Terms & Conditions before downloading this app.

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Terms & Conditions: https://www.foxieventures.com/terms

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Category : Simulation

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Reviews (28)

Nyx. K. Jan 11, 2022     

Different aquarium game. Amazing ambience, soothing animation and smooth graphics. I so want to give it 5 stars being the 1st review, but I feel it can be more engaging in terms of gameplay as it takes so long to advance. I'm mostly using it for its stunning visuals and sounds to relax otherwise it's just a tediously slow and repetitive idle-and-merge type growth game. I'm not suggesting it become a typical idle clicker coz that would ruin it. I have no doubt of the devs creativity for fun feats

Cen. 4. Feb 10, 2019     

This game is perfect if you want something that you can get on only every few days with no issues. As long as you also never switch phones. If you play daily it quickly gets extremely frustrating unless you are willing to put serious real world money into it. It takes so much to get the fish, you can't advance them past level 5 (at least not early on), once you have a fish to level 5 and fully fed you can't do anything with it aside from watch it swim. The graphics are beautiful though.

Ron. E. Feb 7, 2019     

enjoyable, I'm having a problem with controls. I can't seem to merge fish and I cannot move my plants. it just needs a help section or I'm missing something. would be fantastic if the game could become a live wallpaper. I've figured it out, this learn as you go style is starting to work

Rac. A. Jan 30, 2019     

Make it easier to merge fish! Once the (very bad quality and unhelpful) tutorial was over, I was unable to merge any fish. Every time I try the screen just ripples as though I'm just clicking the fish (which I'm not). Like seriously just make a button that we can push to merge fish instead, why make things intentionally difficult? Looks like a good game, if it would actually work.

Mar. M. Apr 24, 2019     

This game is bull. When you build things it doesn't replenish the hearts it costs. So if you accidentally hit for example another boulder that you didnt want and it costs you, well you dont get that 10b back after you delete it. Also, it changes the prices of everything constantly making them higher, so it seriously dampens the progress you can actually make. that goes for fish, or building items. Plus. when you breed fish, you normally get MORE fish, not less and less just leveling up. bull.

Ton. R. Feb 13, 2019     

Progress is impossible without $$$. The spotted brown boxfish, for example, costs 7.45x what the dracula goby costs, yet only produces maybe 1.5x as much hearts as the goby. The spotted boxfish is about as far as I got before I quit. For a while i was okay with progressing slowly, but the most recent update makes eggs cost more every time you buy a new one. Progress has gone from slow to non-existent. Uninstalled. Please let me know when you improve your game.

Chn. M. Jul 5, 2019     

Too Expensive. everytime you purchase an item, the rate increases. once you have completed the quest, the amout given isnt anywhere near the amount spent or needed to puchase the next item. its a nice game, graphics are really good, but its hard to continue playing after level 5..

Kel. T. May 12, 2022     

No way to advance past the first few levels without purchase. Your life force, etc builds up way too slowly to do much other than check every few days and see if you have finally gathered enough to get a new fish. Then you have about 10-15 more of the same kind to get before you can move up.

Lou. P. May 12, 2021     

For some reason I can't move my fish to merge them, but I can hear the sound effects when I try to. I've only being playing for a day. Glitchy game. As you progress everything becomes pay to play, too...shame; this game has such good concept, graphics and potential, but has been ruined by glitches that destroy the merging system and money-hungry developers. I am uninstalling, and I do not recommend this game to anyone who doesn't want to pay up.

Tif. M. Jan 9, 2020     

I love this game. Super calm and relaxing. I love the fish and the view. It's great! However, I find myself not having enough life or food to play for more than a minute or two, even with my life at a x12 multiplier and my food at a x9 multiplier. There should be more ways to earn food and life and/or lower the cost of the fish/food consumption.

Aud. W. Sep 28, 2019     

PAY TO PLAY! Got to level 19, and now cannot get enough resources to move forward without paying. They trick you with dolphins, and it all goes to PTP. I'm still enjoying the game. The graphics are really cool, and I'd like to see much more added to the game play. If you're going to drop money, this game has the potential to be worth it. Really needs a widget to watch & play on.

Oli. Jan 28, 2019     

Pleasantly surprised at how much fun it is. Much more than a game. There is something tactile about the experience. Something I never anticipated. My 4 year old son is having tremendous fun with his fish aquariums. Radical watching him figure out the mechanics and revisit things he has learnt. He speaks about it as if they are real fish. Now I must learn how to get him to share the phone with his 2 year sister.

All. V. Aug 22, 2019     

IF YOU SUFFER FROM MOTION SENSITIVITY! DO NOT PLAY THIS GAME. Concept is great. But the way you zoom in on fast moving fish swimming in circles when upgrading. Gave me a massive migrane to the point of puking. Sorry can't rate higher than that. That could cause some serious issues for some people. Fix it and it could be the best fish idle game ever!.

Jon. E. Apr 27, 2019     

I was looking for a bit more realistic game. Instead food is used to upgrade fish, and one needs to merge two fish to complete upgrades. Great graphics, but a bit too gimmicky for my taste.

A. G. u. Mar 27, 2019     

The graphics are great, but as for the gameplay it is truly no fun. You buy eggs, feed the fish and merge them together into one, higher level fish. Pointless. And the narwhal is pointless to; he just swims around and repeats messages. And after each fish egg you buy, the price goes up! You find yourself waiting a week for your money to increase enough just so you can buy the ridiculously expensive eggs! No need in getting this game when it's no fun.

Tin. S. Sep 13, 2019     

While I enjoyed the game to a point, it became increasingly frustrating due to slow life point increase and high life point costs for fish needed to advance in level. Also annoying was the constant in-my-face urging to purchase more gems or chests. Uninstalling.

Pec. N. Aug 4, 2019     

This game was amazing when I opened it. However I have a very annoying glitch with an unreachable fish which wants to be merged with the other fish of the same type. Could you give me a little advice on this or fix it please or I might uninstall this app.

Ast. L. May 22, 2020     

Please balance up the game. It has potential but the life points required to breed fish is absurd. I mean if you want the points to remain, then at least give us additional ways of earning them. The daily quests alone is already impossible to achieve once you get to the gobies near the end of the common ranked fish...

Nic. B. Jan 30, 2019     

Really relaxing game. Looks amazing, even on my barely-functioning phone, which is a pretty incredible achievement. It's a lot of fun and I keep finding myself getting drawn back to it when I get a free moment.

Lau. D. Apr 13, 2019     

i like games that i can collect real species. but the costs are too high which makes advancing so slow. fish to life ratio is absurd and the fact that you cant do anything without buying gems is an upset. id like to give more stars but at this point i wouldnt unless serious udates or changes are made to meet the needs or expectations of the players not the creators.

J. D. Jan 1, 2020     

Okay this is going to sound like promoting the app but im just saying what i genuinely think. Its really well made. Its relaxing, soothing, fun, simple, bright, colourful, addictive and just really nice to play. The UI is easy to navigate and the fish make you feel like you are caring for them. THE FISH ACT LIKE FISH! Every other fish based aquarium app i have had the fish have acted like... not fish. These ones do. All in all, great app fun and relaxing. Well done guys!

Sha. S. Oct 12, 2019     

The game is great except for the fact that it takes way too long to get health to buy new fish or upgrade decor... You can't even finish daily quests due to this downfall. Fix this and I will gladly 5-star.

Eri. G. Aug 15, 2019     

I haven't to far in the game thats why Im giving it a four! But the game has been great so far! The grapics are amzing...but I looked at the other maps and.....the starter map is more detailed.....then the other ones....I not mad at this just dislike it. I wish you wood add like plants in the cave or just the other maps please dont take it personally!! Im sorry if you get mad๐Ÿ˜  by the review but Im just saying. I cant wait to see what upates bring!!!!! ๐Ÿ˜Š๐Ÿ˜Š๐Ÿ˜Š๐Ÿ˜Š

Ber. T. Jun 4, 2019     

This game is sooo nice & relaxing, except there are a few glitches, for example the fish can swin through each other and it's not the best quality (graphics). But besides that it is my #1 go to game for relaxation!

Cri. Feb 13, 2020     

This game had potential to be great, but you have to watch a ridiculous amount of ads to move forward at all. And it cheats, fish go missing and points get lost. Very disappointed.

Che. Jan 25, 2019     

I absolutely love this game and wish to see more content in the future. Although this game is very grindy, that's to be expected from aquarium-type games. I wish the cost of building things will be lower but maybe this will improve with time.

Lau. G. Feb 7, 2019     

it was really addicting, but then they updated it. now instead of being able to save up and merge fish, the price of the fish go up immensely as you buy more. Deleting now.

ajd. b. Feb 13, 2019     

It starts to get boring you gain hearts very slowly and the prices for the eggs get bigger and bigger every time you buy it and it makes the game.impossible to play without spending money.The first fish you can buy (forgot the name) jus t gets a price that is so big I had to wait days to get it. IM NOT a player that gets to success with money but you just cant do s*** without it in this game!!(sorry if this offenda anyone but its my opinion)