Beautiful calming game (and soundtrack)!
I actually first got Quell Reflect. The puzzle levels are challenging, but not stressful. If I truly get stumped, I can just use some of the credits accumulated to be shown the solution. Most games I play, I have to turn the sound off, as the music quickly annoys me. But the Quell series has the perfect soundtrack (and sound effects) to keep muy sound volume up throughout the game.
ChesterGreenBird about
Quell+, v1.80