Milky Way: Cosmic Playground

Create star systems and galaxies by placing stars, planets, black holes, and adjusting masses and velocities to shape cosmic dynamics. Adjust gravity, orbital parameters, and physics sliders to observe how changes affect system stability and emergent behavior. Seed life-supporting planets and monitor environmental variables to foster ecosystems and study habitability under different conditions. Complete scenario challenges that test your problem-solving, such as stabilizing a collapsing cluster or engineering a habitable orbit. Unlock tools and upgrades to access advanced simulations, real astronomical data overlays, and enhanced visualization modes. Save, replay, and share your favorite simulations, or switch to reference mode to learn real-world astronomy facts and measurements.