Hidden Oxygen is a logical grid-based puzzle game that is inspired by Sudoku. You need to figure out the correct placements of oxygen atoms.



<h3>Rules</h3>
<ul>
  <li>Oxygen atoms cannot be adjacent to each other, even diagonally</li>
  <li>Numbers next to rows and columns tell how many oxygens should be in them</li>
  <li>Each carbon atom needs 2 adjacent oxygens</li>
</ul>

<h3>Release Date</h3>
June 2020 (Android). November 2020 (WebGL).

<h3>Developer</h3>
Meek Bits developed this game.

<h3>Platforms</h3>
<ul>
<li>Web browser</li>
  <li>Android</li>
</ul>


Puzzle

Hidden Oxygen is a logical grid-based puzzle game that is inspired by Sudoku. You need to figure out the correct placements of oxygen atoms.

Hidden Oxygen

Hidden Oxygen is a high-quality puzzle game. Play it here on CrazyGames in your browser, free of charge. You can play this game unblocked. It includes a detailed controls section . That way, it is easy to see how to play the game. Hidden Oxygen is made with Unity WebGL technology to work fast in most browsers. In addition to playing the game online, you can also install the app version for your Android phone and tablet. Did you like playing Hidden Oxygen? Then also play our other puzzle games or <a href='https://www.crazygames.com/game/thief-puzzle' target='_blank'>Thief Puzzle</a> and <a href='https://www.crazygames.com/game/mahjongg-solitaire' target='_blank'>Mahjongg Solitaire</a>.

Kings and Queens Solitaire TriPeaks

10x10

GRWM Date Night

Block Puzzle Master

Getaway Shootout

Babel Tower

Planet Clicker

Escape From Prison Multiplayer

Steam City

Noob Miner: Escape From Prison

Grandfather Road Chase: Shooter

Horror Room: Scary Hotel Tycoon

Ranch Adventures

Logo Quiz: Game World Trivia

Dinosaur Game

Skillfite.io

Little Fox: Bubble Spinner Pop

Color Water Sort 3D

Sprunki

UpRunner

Slingshot Fortress

Road Master 3D

Geography Quiz: Flags and Capitals

Merge Restaurant

Trivia Crack

Outlets Rush

Supermarket Simulator: Store Manager

Vehicle Masters

Chibi Doll - Avatar Creator

Dog Life Simulator

911: Prey

Stickman Fighting 3D

Javelin Fighting

Burnout Drift

Amazing Crime Strange Stickman

Super Crime Steel War Hero

Bank Heist

Authentication - CrazyGames

Authentication

Your account has been temporarly disabled because you didn’t verify your email address 48 hours after your registration. Press the below button to send a new email to confirm your email address. After confirming your email address you’ll have access to your account again.

Please verify your email address!

Your current browser does not support this login method. Switch to a different browser.

Enter the email address of your CrazyGames account, and we will send you an email to reset your password.

We've sent you an email to verify your account. Check your SPAM folder if it doesn't arrive in your inbox.

Your account has been created!

Pick a username

CrazyGames - Online Games

Controller detected

We want your feedback!

Play free online games at CrazyGames, the best place to play high-quality browser games. We add new games every day. Have fun!

Logo CrazyGames.com

A platform update is coming in January 2025, log in to secure your games’ progress.

Don't lose your progress! 

You’re about to start the process of deleting your CrazyGames account. Your gaming history and progress will be deleted forever. Any in-game purchases made using this account will be lost.

Delete your CrazyGames account

Enter a new email and check your mailbox right after to confirm the change. If you don’t confirm it, your account will keep the current email address.

Want to change your password? Enter the current one first, then the new one twice (just to be sure you don’t make any mistake!)

Change your password

This information is shared exclusively with CrazyGames and will not be visible on your profile.

Create an account to add games to your favorites

Add games to your favorites by clicking on the ♡ icon on a game page.

My favorite games

Create an account to see all your liked games

My games

You’re about to delete all your progress for this game and start from scratch.

Delete progress

Game progress

Tired of your current username, huh? No problem, pick a new one here:

This content isn’t available at the moment

Ad blocker detected

Report a not yet published game

We've already received your message and are currently reviewing it. To ensure a fair and timely response for everyone, we kindly ask that you wait until tomorrow before submitting additional feedback.

It will help us improve the platform.

Thank you for your feedback

About CrazyGames

Feedback

Find a game

Select a game

This will help the developer improve the game and make it even more awesome!

Share the following link with your friends

Invite your friends

Mutual friends

You must log in to your CrazyGames account to report a user

Log in to report users

Friend requests

Create a CrazyGames account to start inviting your friends.

Bring your friends! 

Friends

profile link

searching

Invite friends

Share profile

Notifications

Support CrazyGames and our game developers by disabling your ad blocker

Embed

Gameplay Video

Don't like this game?

You are playing this game in a QA environment. This link should not be shared with end users. No revenue will be attributed.

Scan this QR code to enjoy some playtime on your mobile! 

Play on mobile! 

More Games In This Series

Share this game

Hidden Oxygen

Rules

Release Date

Developer

Platforms

Controls