CircloO is an arcade platformer game in which you control a circle that must collect other circles to expand the level and continues the game. The game uses a physics engine that you must manipulate as you cannot jump, build momentum up to successfully travel around the map.

To complete a level, you must collect all 7 circles that are spread out around the map, and expand the circle. There are 14 levels in total to complete plus an additional 6 hard mode levels to really test your skill. Have fun! The second episode is available here!

Release Date

circloO was as initially released in March 2015. You can play the updated version of the game here on


Florian van Strien developed this game.


  • A challenging platformer game
  • Realistic physics with momentum-based gameplay
  • Round level that is constantly growing
  • 14 levels with additional 6 hard mode levels


Web browser (desktop and mobile)



Control the movement with AD or left/right arrow.

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