
An aquarium sim you can keep anywhere on your screen while you do other things. Buy endless upgrades, apply trait modifiers, and complete your collection of rare, epic and legendary fish! Buy today or give a gift to someone!
Modeled estimate, not a reported figure. How we estimate →
Discounts
Every price cut of more than 20% we have observed, in each market that quoted one, with this game's chart position on either side of it. These are episodes, not a model: a sale is one event, and one event cannot tell you what the next one will do.
Reviews, worldwide (the counter carries no country): 0/day in the week to Aug 27 → 0/day in the week after.
Reviews, worldwide (the counter carries no country): 0/day in the week to Jul 21 → 0/day in the week after.
For scale, across Steam · Top Sellers · Brazil over the last 30 days: the 25 chart moves that followed a price cut of more than 20% went a median of 10 places towards #1, and the 2,413 moves with no price cut behind them went 2 away. One store, one chart, one country — it is the only place we have enough observations to say even that.
Prices outside the United States have been collected since 6 August 2026 and chart positions since 19 July 2026, so a cut older than that has no market to compare and a market that joined later has no history yet. Nothing here is converted between currencies.
About
Peacequarium is a cozy idle aquarium simulator that you can resize and keep anywhere on your screen while you do other things, or you can play in full screen windowed mode! You can set the game window to always be in front or allow it to be covered by other windows when you need more screen space to focus on your tasks. So whether you're studying, preparing a budget, or driving your train through the zombie apocalypse in Choo Choo Survivor, or just doing mind numbing tax paper work, you'll always be able to look at your cute fish and feel so much better.
A hundred fish to discover, grow, keep or sell. Fish are categorised common, rare, epic and legendary with different values and earning rates. You can endlessly upgrade each species of fish to increase value and earning per second and you can apply fun traits to your fish from your Steam inventory that make them more unique and beneficial to your gameplay. There are also special glowing fish for each species that drop into your Steam inventory from time to time and you can spawn these into your tanks, whenever you want, for more unique fish and for their triple value and earning per second vs their normal species counterpart.
Twitch Integration! Viewers can spawn cute snails and turtles that generate a little bit of money for 60 seconds with the command !snail and !turtle. Up to five mini auto feeder submarines can be summoned with the command !sub
Steam Inventory Integration! You'll regularly receive gift boxes, fun fish traits, and unique glowing fish that you can use in game for extra fun and rewards.
Lots of cool upgrades to purchase; a can of worms that enables you to summon wholesome buffs, increased earnings upgrade, increased feed power upgrade, a submarine that auto feeds your active aquarium, multiple aquariums and capacity upgrades, lovely backgrounds, and calming colour schemes!
It's up to you if you want to play actively or passively. If you are active then you'll get the gold fever fish, super feed, and the treasure chest that gives you tons of money! If you play passively then your fish earn every second and even when the game is shut down so you'll never be disappointed!
Don't forget to pet the husky!

Reviews
Another good game for those going through severe depression and anxiety/panic issues.
this game needs a help window i have questions like what do traits do after i put them on a fish it just doesn't tell you after you apply it, it just shows a lil picture of it on the fish, do fish breed how do i get more of the same type with out rolling them, what all of the random buffs do, fish levels explained, just general info to refer to. no hate played the beta for a long time, love the full version its just been so long since i played the demo i forgot some things i previously had figured out and i feel theres not way to get a reminder. i recommend this game alot its great everything it says it is and a lil more just need info <3
Media

Related
Related
Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
This and every other Pro feature is free until October 20, 2026. A free account is all it takes.
Genres
Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English
Game is exactly what it describes itself to be. Great for a side thing to do while working. I love being able to name my fish. The UI and resizing is solid. Things I wish to be added - Ability to only resize the height of the window so it still goes across the screen - Setting to allow window under other windows - Would be cool to be able to name ??? fish
Not for me.
Fantastic idle game. Pretty good, I hope y'all add a Coelecanth fish to it at some point -- especially considering how remarkable and ancient they are. I'd also hope for some crustaceans like lobsters and hermits in the near future but this is nice so far.
this game is neither aesthetically pleasing enough nor interesting enough mechanically for my personal tastes
Good chill game. Highly recommend
Peacequarium is exactly what it advertises itself to be; a chill fish collection game. However, in my personal opinion, it needs a balance pass before I'd consider continuing to play it. Here's my notes I took while playing the game: [b]Possible Bugs:[/b] [*] FX Volume, Music Volume and Water Transparency sliders are all flipped horizontally in the Settings menu. [*] Insane lag/stutter/frame drops when game autosaves or applies backgrounds. [*] Water transparency slider does not work as intended; from left to right it only goes from pure black to a dull flat colour regardless of whatever colour palette has been selected. [*] In-game progression experiences a delay in registering steam achievements at approproate times e.g. despite hitting 100 worms, achievement did not trigger until I saved and quit the game. [*] Saving and quitting the game causes the worm growth rate to fall for some reason. [/list] [b]Personal Mechanical Feedback:[/b] [*] Game needs a report bug button. [*] I wouldn't mind it if an option to lock specific fish species was added. [*] Needs to have a much clearer and transparent explanation as to how the fish traits are actually Steam items and are consumed upon attaching them to fish. I would also suggest having a way of refunding fish traits back to the player should a fish with a trait attached be sold. [*] UI could improve. The game already establishes 100 fish per aquarium as the max and thus, does not need to be displayed as 100/100. More aquariums beyond four could fit into the UI if the buttons for them were moved to the bottom of the screen that could be scrolled through from side to side. Aquarium tabs could either be labelled as Aquarium Number/Fish Count e.g. 1/30, 2/50, 3/100 etc or simply colour coded. [*] Remove buying legendary fish with worms. Button is pointless once player is able to obtain all legendary fish via buying Legends packs. [*] Game DOES NOT EXPLAIN that having more worms in stock is what increases worm growth rate. Having said that, the baseline growth rate should at least begin at 1.00. Having it begin at 0.0X is ridiculous for such an integral mechanic and feels lacking in terms of player agency. The achievements involving collecting a THOUSAND of each buff feel completely unattainable for me. Worm buff is sorely needed as it would help make these achievements feel more within reach. Upgrades in general need a consistency/balance pass. That nice feeling of progress and Number-Go-Up-ness falls off dramatically after you surpass a trillion. Again, increases of 0.0X do not need to exist in a game like this. It is an egregiously small amount for how expensive each incremental upgrade is. I suggest considering adding duration upgrades for all the buffs. At its current state, it feels overwhelming to continue playing otherwise. [/list] In conclusion, I would still reccomend playing Peacequarium if you just wanna relax and watch cute fishies swim across your screen while you're doing other things. Perhaps my frustration is unwarranted and you will have more patience than I. But until something changes, I feel no desire to pursue my missing achievements. I do not intend on dropping 200 hours on this game just to get them.
Whilst not for everyone! I do love this game. It's fun to have idle-ing on your screen when you go out or leave it idle overnight or while you're in class. It's like an interactive screensaver. All the fish have clearly been drawn by hand which, as a digital artist I really appreciate and love! Maybe varying some of the quests would be great, but this can run probably on a literal brick so if you're not sure? You'll be fine! As of this review I'm on my journey to try and get to 100 achievements and I'm on 93... getting there slowly!! <3
Its just a chill game. Its kinda like an interactive screensaver.
Selling now
See how fast this game is selling right now — estimated copies and revenue per day from recent review growth.
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $1.8M | 8.4K | 92% | $5.99 | |
| $29.2K | 136 | 99% | $5.99 | |
| $1.8K | 0 | — | $7.99 | |
| $4.8M | 8.7K | 95% | $14.99 | |
| $196.6K | 1.4K | 94% | $4.99 | |
| $26.8K | 597 | 90% | $1.49 |
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $2.5K | 158 | 85% | $0.74 | |
| $2.5K | 62 | 89% | $1.99 | |
| $2.5K | 52 | 92% | $2.99 | |
| $2.5K | 52 | 77% | $2.99 | |
| $2.5K | 200 | 88% | $0.74 | |
| $2.5K | 64 | 94% | $3.99 |