Universe Sandbox 2 V3411 (100% PREMIUM)
You can now replace all of one material on a planet with another in a single tap. Want to see an Earth with methane oceans instead of water? It’s now a one-click experiment. Enhanced Atmosphere Opacity:
To see how much the simulation has evolved from its humble 2008 beginnings to the high-fidelity experience it is today, check out this evolution history: universe sandbox 2 v3411
Replace the Sun with a black hole of 1 solar mass. Watch the planets remain in stable orbits (gravity is mass-dependent, not light-dependent), but observe the world go dark. v3411 improved the so that the accretion disk of a stellar-mass black hole looks terrifyingly sharp, casting realistic shadows on orbiting moons. You can now replace all of one material