Over time his hobby eventually grew into the original Universe Sandbox that was launched on Steam in May 2008. Now, more than 15 years later, the full set of outer space simulation tools is still Dixon’s passion project. Universe Sandbox 2 got its start when Dixon began dabbling with a simple gravity simulator in high school. “It really becomes the world’s best god simulator,” Dan Dixon tells me describing what will happen to his life’s work, Universe Sandbox 2, once the VR support he is working to implement goes live.