0h n0

In-app purchases
4.7
3.63K reviews
100K+
Downloads
Content rating
Everyone
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About this game

It's 0h h1's companion game!

Remember that little logic game called 0h h1? Well, we've made a challenging new puzzle game to go along with it! Meet its companion... 0h n0.

0h n0 is a lovely little logic game that follows its own three rules:

- Blue dots can see others in their own row and column.
- Their numbers tell how many.
- Red dots block their view.

It's up to you to complete the grid without ever having to guess. Simply tap a tile to make it blue or red and complete the grid. 0h n0 gives you unlimited puzzles for all grid sizes:

5 x 5
6 x 6
7 x 7
8 x 8

And now included: 4 x 4 and 9 x 9 boards! Yay :D

Each puzzle can be played in perfect Zen mode without any pressure. But you can attempt to beat your personal best time in the game's time trials, unlock fun achievements and compete with friends in leaderboards.

0h n0 is free, without ads, without social network requirements, without locked features and without nag screens. 0h n0 is a little gift to you. We hope you enjoy it.

0h n0 can also be played on 0hn0.com.
And if you haven't played its sibling yet, go visit 0hh1.com.
Updated on
Apr 3, 2020

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No information available
4.7
3.63K reviews
Melissa Anne
June 30, 2022
Perfect, fun, thoughtful little puzzle/logic game to pass the time, with NO ADS, no annoying notifications, no purchases whatsoever. Only the option to donate a few bucks if you want. (Not even a pop up, just a tastefully discreet message at the bottom of the screen.) Which I did donate, btw. Because it's perfect, and I appreciate that it exists. Whoever, wherever you are app developer: thank you :)
31 people found this review helpful
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Ethan Brooks
April 4, 2022
Great game, I love that no guessing is required. Some music or otherwise sound would be really great though, it just feels a little lifeless right now without it, and I always look forward to the music of games. Especially games like this, with a simplistic, abstract look. Anyway, super fun!
53 people found this review helpful
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A Google user
April 9, 2020
This is a wonderful game marred by one drawback – it doesn't seem to save your board if you leave the app. So if you're in the middle of a 9×9 game and, I don't know, your battery dies, or Android switches to battery saver, or you do something else for too long and Android kills the app... you lose your progress. If you have the time to do it all in one sitting, it's great though!
87 people found this review helpful
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What's new

Fixed the bug where the game didn't properly fit within the screen boundaries. Apologies for the inconvenience!