Place gravity. Watch motion.
Gravity Playground is a free online physics sandbox that lets you create and manipulate gravitational fields in real time. Place gravity wells anywhere on screen and watch hundreds of particles orbit, flow, and collide in response to the forces you create. With three distinct modes and adjustable parameters, it is both a relaxing visual experience and an intuitive way to explore how gravity shapes motion.
Tap or click anywhere to place a gravity well. Particles are immediately drawn toward it, forming orbits and flowing streams. Drag a well around to sweep particles along with it, or double-tap to remove it. Use the strength slider to control how powerful each well is, and the trail slider to adjust the visual persistence of particle paths. Switch between Particles, Orbit, and Chaos modes for different behaviors.
Gravity Playground is a free interactive physics sandbox where you tap or click to place gravity wells on screen. Particles respond to gravitational forces in real time, creating orbital patterns, flowing streams, and chaotic collisions depending on the mode you select.
Tap or click anywhere on the screen to place a gravity well. You can drag wells around to sweep particles along with them, adjust their strength using the slider, and double-tap a well to remove it. The simulation supports multiple wells that interact with each other.
There are three modes: Particles mode shows a large number of small particles flowing around gravity wells, Orbit mode uses fewer but larger particles that create stable orbital patterns, and Chaos mode unleashes a dense swarm of fast-moving particles for dramatic, unpredictable behavior.
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Last updated: March 2026 · whatifs.fun — Free interactive games, experiments & simulations