Click to play
x
Controls

Controls

  • Click once to change state
  • Click and drag to mark multiple cells as empty
  • Zoom with mouse scroll wheel
  • Pan with right button
Hidden Oxygen

Hidden Oxygen

Hidden Oxygen
Click to play
This game is not available on mobile.
rotate phone

Play Hidden Oxygen Online for Free

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.

Instructions:

Controls

  • Click once to change state
  • Click and drag to mark multiple cells as empty
  • Zoom with mouse scroll wheel
  • Pan with right button

Hidden Oxygen can be played both on PC and mobile devices