
KOI is an award-winning exploration adventure game that details the story of a small koi on a grand adventure
Modeled estimate, not a reported figure. How we estimate →
Prices
The United States storefront in every case, so this compares stores and not countries.
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 17 → 0/day in the week after.
For scale, across Steam · Top Sellers · Brazil over the last 30 days: the 26 chart moves that followed a price cut of more than 20% went a median of 7 places towards #1, and the 2,400 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
Stats
Sums Steam only; PlayStation publishes no volume signal, so the true total is higher by an unknown amount.
| Store | Price | Audience | Score | Chart | Est. revenue |
|---|---|---|---|---|---|
SteamYou are here | $0.99 | 168reviews | 82% | — | $2.2K |
| $9.99 | 633ratings | 79% | — | not modelled |
Matched by title — a reused name can pair the wrong games. * is a critic aggregate. Prices and positions are each store's United States storefront; Epic charts worldwide. Audience and Score too, except Steam's, which is worldwide.
Engagement
Reviews
Themes across 41 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
Koi is a very simple and visually beautiful puzzle game, it's relaxing and it doesn't take much thought in order to progress through simple levels. If you're looking for something cheap, and relaxing to play, then I could see this being your cup of tea 100%. The game-play is very similar through each level, but there is a good amount of content and as I mentioned, it is a very calm game.
pretty chill, it was kinda difficult switching it from korean or whatever to english but i figured it out. overall pretty nice
there's something fishy going on in these waters
Media

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Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
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All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English, Japanese, Simplified Chinese, Traditional Chinese, Korean
Hours played at review time, across 41 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
全実績解除したので書きます。 えっと、お友達の鯉?を同じ色のお花の所に連れて行ったり ちょっとステルスするゲーム 全実績解除まで2.5時間くらいで値段の割にかなり遊べました。 グラフィックもサウンドも良いのでまったり遊びたい方には良いかもしれません。 Flowerをかなりライトにした操作が鯉で見下ろし方のゲームっていうのが一番しっくりくるかと
3块钱的还可以。有些元素感觉光遇有点像。有一段动画感觉像飞升了,流星鱼,有点抽象?
Even if this game were free I could not recommend it in any way shape or form. It is not relaxing, it is not puzzling, it is not exploratory in any nature. There are TWO whole puzzles in the game, and one is a memory game of simon-says where the sequence lengths are 5,6,7 and you have to play all 3 sections flawlessly or else it resets. This game is played THREE WHOLE TIMES! Wow, they really got the most out of it. The other is a "match the pattern" type of game, similar to memory games where you flip and match cards. It appears ONCE and sucks in that one iteration, since the timer is incredibly fast and whichever pattern you choose to flip second will flash on screen for literally a couple frames. Even at the 74 CENTS I paid for this, I feel ripped off. The best example is for sure the last level. You spend straight minutes aimlessly swimming through a MASSIVE empty level without the arrows that spent so ♥♥♥♥♥♥♥ long pointing you to the flower right next to you at the start of the game. The ONE TIME you want them, they aren't ♥♥♥♥♥♥♥ there.
"Koi" is very nearly a hidden gem, with the only issues being that it's very easy and the graphics could use some work. You are a fish (A coy, I suppose) who collects other fish to open flowers, avoid enemies and complete simplistic puzzles. It's very easy but some of the achievements require a bit of work. There is a weird, strangely beautiful cutscene hidden in the game if you complete an upstream section really quickly, but some of the graphics are just hideous, especially at the pipe section of the game. The music is beautiful and it's not a bad way to spend a couple hours. I liked it but it needed a tad more effort on the presentation side to be truly wonderful.
I can only say that for the money you paid is worth it, but I can't really say anything else positive, a lot of times it feels like it desperately makes you lose as much time as possible to make you lose time (and not for atmosphere), the star level above all else feels just frustrating with the white fishes only getting in the way while not being a real threat, the immense and useless space made just for you to make more and more rounds. If the star level was instead some kind of playable credits it would have been way more fascinating. Because of these solutions the game quickly lose the atmosphere of its magic, aside from some highlights that make the title worth of its price
anybody actually unlock this? been having alot of trouble, am currently trying to idle in level 2 but i can't for the life of me seem to get it to register despite having 56 hours playtime (a big chunk of that was on the main menu,
I really wanted to be able to recommend Koi, but unfortunately I just can't. It has a lot of potential and I liked a lot of it - the music was great, the graphics were beautiful, the gameplay was simple, but relaxing - but there were just too many things that weren't great. Even though the music is great, the sound design is not balanced at all and there's no way to adjust the sound effects or music volume. It was very loud. There was a weird advertisement(?) for an anime(?) that would pop up in the corner on the main menu on loop for whatever reason? The AI needs some work as the little fish you collect would constantly swim miles away from the main fish, even if you're not moving at all, and therefore get attacked. The ending is abrupt and the story incredibly unclear unless you find every single puzzle piece. For some reason the last level was locked when I finished the game? There was a long period of time during the credits sequence where the screen was still scrolling, even though there were no actual credits being shown, and then the whole thing looped until you specifically exited. Suffice to say, between quality assurance and and general decisions, there was just too much that could have and should have been done better. I'll be honest, I have no idea why this game won an award and received another nomination. That being said, it is priced very low and it is very short and overall fun and a good, relaxing concept. I just wish it was implemented better.
Players by region
Where this game's players are, estimated from review languages.
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $30.5M | 99.5K | 91% | $19.99 | |
| $19.7M | 96.4K | 96% | $14.99 | |
| $19.7M | 27.7K | 93% | $19.99 | |
| $19.6M | 86.5K | 96% | $9.99 | |
| $16.8M | 157.3K | 98% | $4.99 | |
| $16.7M | 45.1K | 95% | $9.99 |
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $2.2K | 126 | 86% | $0.99 | |
| $2.2K | 64 | 41% | $1.99 | |
| $2.2K | 140 | 89% | $0.99 | |
| $2.2K | 138 | 99% | $0.99 | |
| $2.2K | 93 | 78% | $1.99 | |
| $2.2K | 50 | 90% | $3.99 |