But to Paint a Universe, by Mårten Jonsson, has just been released on Steam! The game is a meditative puzzle-game with a storybook narrative.
Available here: http://store.steampowered.com/app/335220/
Official description:
Follow the story of a little girl as she struggles to restore a sky broken by an evil monster in But to Paint a Universe! Play through a diverse adventure, where the rules change in every level, or test your skills in the time attack mode competing against yourself, or on the online boards for the highest score. Enjoy a wonderful aesthetic experience, and get lost in a beautiful and atmospheric world.•20 unique levels in adventure mode
•Online and offline scores
•Gorgeous imagery and a professional soundtrack
•Immersive game world, and challenging gameplay
•An engaging storybook narrative
Official site: http://www.buttopaintauniverse.com