Gravity Simulator
Interactive Space Physics Sandbox In Your Browser
Gravity Simulator launched on May 10, 2026.
What it does
Explore gravity through two interactive physics engines built for experimentation and learning. Test how objects fall on different planets and moons with the Object Drop Engine, or create realistic orbital simulations featuring planetary motion, collisions, slingshots, and N-body gravity systems. Gravity Simulator runs entirely in the browser with real-time controls, cinematic visuals, and scientifically inspired physics - no downloads or installations required.
Gravity Simulator: Explore high-fidelity physics and compare gravitational forces on planets, moons, and the Sun using verified physical constants in our lab.
Does a similar job
all alternatives →- IBI built a gravity simulator in pure CSS2022 · multiplanetary.website · ▲64
- GIGravity – Interactive solar-system simulator, from Newton to EinsteinJun 2026 · qunabu.github.io · ▲217
Just for fun and self education, I've built this over a weekend to teach myself why orbits exist, not just show planets going around. Something that was never clearly explain to me in school. It opens with a guided tour that builds the idea up step by step: two bodies and the equal/opposite force, inertia (the Sun is removed and Earth just drifts straight), then "an orbit is falling and continuously missing," cosmic velocities with a little rocket, Voyager 1 & 2's real gravity assists (the clock runs the actual 1977–1989 dates so the planets orbit into their grand-tour alignment and the…
- IBI built an interactive 3D three-body problem simulator in the browserMar 2026 · structuredlabs.github.io · ▲60
Rocket Launch and Orbit SimulatorJan 2026 · donutthejedi.com · ▲166I (17y/o) have been developing a rocket launch simulation that allows the user to explore what it's like launching a rocket from earth and putting it into orbit. This idea originally started as an educational simulation but as i've gone more down the rabbit hole the more i've wanted to make it realistic. The problem is that I've never had a formal orbital mechanics class or anything like that so I don't know what I'm missing, what I currently have implemented is: Variable gravity Variable Atmospheric drag (US Standard Atmosphere 1976) Multi-stage rockets Closed-loop guidance /…
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