Galacti-Chron's Sci-Fi Worlds Pack - Kelvana Prime has been released!
This contains a sci-fi world pack. This includes characters, animated computer consoles, faces, music, and tilesets (all layers). It can be used for any purpose but is sized for RPG Maker MV. The video above shows a short preview of a town built with this tileset. You are free to use this in your commercial and non-commercial projects.
While Star Shift is a commercial product, the development process and assets are using a 100% open development model.