The original soundtrack is composed by Macoubre. If you buy it from Steam, you can request a refund within 14 days of purchase and with less than 2 hours of playtime. If you buy it directly from us and decide you do not like it, just let us know and we will issue a refund. No, we do not have a demo available for Universe Sandbox. Windows, macOS, Linux/SteamOS, HTC Vive, Oculus Rift+Touch, & Windows Mixed Reality. What platforms does Universe Sandbox run on? Just know that all of the final polish isn't quite there yet. Buying-in early means you won't have to wait to explore the many new and exciting features that are already in place. You, the Early Access user, will help us uncover bugs and highlight areas for improvement. We have many fixes and improvements planned. Universe Sandbox is Early Access software. Universe Sandbox is now available for Windows, macOS, Linux/SteamOS, HTC Vive, Oculus Rift+Touch, and Windows Mixed Reality. Learn more about Universe Sandbox, or learn more about the team. Work on Universe Sandbox began in fall of 2011 and it continues today by a growing team of talented developers, artists, and scientists. It merges real-time gravity, climate, collision, and physical interactions to reveal the beauty of our universe and the fragility of our planet. Universe Sandbox is a physics-based space simulator that allows you to create and destroy on an unimaginable scale while exploring the cosmos.