Sandbox Universe

Sandbox Universe - Play Online

Sandbox Universe is a 3D space simulator. Build star systems. Watch gravity do its work. Collisions? Black holes? All possible. Pure physics. Pure chaos.

How to Play Sandbox Universe

Your mission? Create. Destroy. Experiment. Drop stars, planets, moons, asteroids, comets, black holes, and neutron stars into the void. Everything follows real gravity laws. Watch them orbit, collide, merge, or rip apart.

Building Your Universe

Start with the Solar System. Rotate the camera with mouse or finger. Zoom with scroll wheel or pinch. Tap "+" on the toolbar. Choose from a catalog of real celestial bodies. Stars. Planets. Black holes. Neutron stars. Drop them in.

Physics in Action

Tap any object. View its mass, radius, temperature. Adjust parameters. Watch orbits shift in real-time. Crank up the mass of a planet? Its moons spiral inward. Drop a black hole near Earth? Solar System collapses. Control time with speed-up and slow-down buttons. Fast-forward to see orbital decay. Slow down to catch the exact moment of impact.

Scenarios and Sandbox Mode

Open Scenarios. Load pre-built systems. Binary stars. Asteroid belts. Chaotic multi-sun setups. Or start from scratch. Empty void. Build from zero. Crash planets together. Create binary stars. Feed a black hole. No rules. Just gravity.

Key Features

• Real Physics Simulation: Every object obeys gravity. Orbits decay. Collisions scatter debris.
• Full Object Catalog: Stars, planets, moons, asteroids, comets, black holes, neutron stars. All adjustable.
• Time Control: Speed up to watch eons pass. Slow down to study close encounters.
• Pre-Built Scenarios: Jump into stable systems or chaotic experiments. Start with the Solar System or an empty sandbox.
• 3D Camera: Rotate. Zoom. Follow any object. Watch destruction from any angle.
• Parameter Tuning: Edit mass, radius, temperature. See instant effects on trajectories.

Who is Sandbox Universe for?

Perfect for space nerds. Astronomy students. Anyone who wants to smash planets together. Great for quick experiments or hours of tinkering.

Release Date & Developer

Sandbox Universe was developed by Flagwin Studio. Released in April 2026.

Controls

• Mouse/Finger Drag: Rotate camera
• Scroll Wheel/Pinch: Zoom in/out
• "+" Button: Add object
• Tap Object: View/edit properties
• Time Controls: Speed up or slow down simulation