Today, This Starry Midnight We Make got released on Steam. The game is a celestial growth simulation (or simply a puzzle game) and allows the player to create celestial objects. Current special release 10% off discount price is $8.99 or ¥1122 until June 8. For more details, check out the store page. Here's a trailer.
Official Website: http://www.carpefulgur.com/tsmwm/