Featured by Apple as one of the Best New Games

"The visuals in Kotoro are simply beautiful." - AppAdvice

"Something different to do at every turn." - 148Apps

"Based on a simple but effective principle." - MacGeneration

Kotoro is the first atmospheric puzzle game about color mixing based on the rules we all learn as children. Your objective is simple: Become a certain color by mixing with others.

- 6 Chapters, 72 puzzles: Each chapter explores a new idea such as subtraction, replication or time
- No Ads. No In-App Purchases.
- Atmospheric soundtrack powered by 7 talented musicians from around the world
- Fully localized for French, Chinese, Japanese and Spanish
- Sync your game progress with iCloud
- Minimalist, dreamy and beautiful
- Ambient and relaxing experience

What’s New

Version 2.0

Kotoro is back!

We have remade the entire game on a completely new game engine and we hope you enjoy it.

What happened?
The original game engine we used to develop Kotoro was no longer being supported so we were unable to update the game to meet the 64-bit requirement for the newer iOS versions. As a result, we have remade Kotoro from scratch on a new game engine. If you've bought the game before, you can download the game again for free with the same Apple ID you initially used to buy Kotoro.

What's next?
We are thinking about adding a new chapter to the game further down the road. Meanwhile, if you'd like to support us please consider purchasing our other games on the App Store.

Ratings and Reviews

4.3 out of 5
8 Ratings

8 Ratings

ILoveDoctorWho ,

A relaxing experience

Kotoro is a relaxing puzzle experience, with calming sounds and smooth visuals. The puzzles in general are quite good, and level progression is for the most part interesting and well-paced.

However, Kotoro does have some flaws. One is that eight or so levels into each 'world' the puzzles tend to feel a bit samey, though some have interesting solutions that stand out from the rest. 'Swap', in particular, becomes quite repetitive, as all solutions are similar. Another thing that could be improved is simply the length of the game; what is in here is great, but with only 60 short levels (the harder ones took me only a few minutes each), the experience will not last you terribly long. I do see, however, that there is a 'more coming soon' page, which hopefully means we will see some more of Kotoro soon.

Kotoro is definitely a zen-like experience, one that will appeal to puzzle solvers who like things which are original and minimalistic. It is short, yes, and it can feel repetitive, but Kotoro does not fail to drive you on to complete every level.


omniflair ,


This game is very soothing and the music fits perfectly. There seems to be no glitches or anything, just nice, smooth puzzle-solving.

loveMyiPhoneHeaps ,

Pleasing puzzle game

Not too hard, but challenging enough to give a good sense of achievement.


Semidome Inc.
177 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad and iPod touch.


English, French, Japanese, Simplified Chinese, Spanish

Age Rating
Rated 4+
© 2019 Semidome Inc.


  • Game Center

    Challenge friends and check leaderboards and achievements.

  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

More By This Developer

You May Also Like