Spirit Circles - Relaxing Puzzle

There are circles floating in space, and you can touch them to make them smaller and faster, or bigger and slower...
You can also place a static circle of your own.
Circles of same color merge, and the goal is to have no more than one circle of each color.
(Each color has its own properties, like "magnetism". Between two, the bigger circle determines the interaction.)

Contains 20 levels.

Controls:

• Use M to Mute sound.
• Game is played with Left Mouse Button / Touch only.
• Extra controls are:
  • R to restart the current Level.
  • Left/Right Arrow to skip Levels.
  • M to mute sound.

Windows-only at this moment.

Have fun and let me know how you liked it. 

 P.S. If you want to read more about the project, check out its github.