Dev tools · alternatives · 2026
24 alternatives to Gravity Simulation
Drop the balls in different celestial bodies
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier. Gravity Simulation launched in 2022; newer entries below may have overtaken it.
- 1GI
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…
Jun 2026 · qunabu.github.io · its alternatives →
- 2HO
3D gravity and space Simulator. Explore and play around with the force of gravity in the context of an array of scenarios from our solar system and beyond. You can add planets, delete the Sun, change the value of the gravitational constant or simply lean back and enjoy the dazzling beauty of the pen
2018 · thehappykoala.github.io · its alternatives →
- 3
Lunar lander type game with computational fluid dynamics - s-macke/Interplanetary-Postal-Service
2018 · github.com · its alternatives →
- 4
Atlas of Spacefree▲770Hello HN! Sharing a recent side project of mine, the Atlas of Space, that I built out to explore the Solar System. As a long-time space nerd, I realized recently that I didn't have a good intuition on the scale, speed, and relative orientation of the celestial bodies around us. So over the break I built out a kind of spatial Wikipedia to click around and learn about planets, moons, asteroids, and other bodies orbiting the Sun. The physics is all simulated in the browser using simple Newtonian mechanics. There's a lot left to do from here, including modeling objects in non-Keplerian orbits…
2025 · atlasof.space · its alternatives →
- 5
Gravity WebGL experiment in the Solar System
2016 · github.com · its alternatives →
- 6
I (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 /…
Jan 2026 · donutthejedi.com · its alternatives →
- 7IB
2022 · multiplanetary.website · its alternatives →
- 8
Interactive Space Physics Sandbox In Your Browser
May 2026 · stellarillusion.com · its alternatives →
- 9MS
Did this a few years ago. Seems apropos. Sources and more here: https://github.com/EngineersNeedArt/Mooncraft2000
Apr 2026 · mooncraft2000.com · its alternatives →
- 10SP
2014 · stefanom.org · its alternatives →
- 11
- 12
Gravity simulation game with many explosions and more
2024 · play.google.com · its alternatives →
- 13IB
Mar 2026 · structuredlabs.github.io · its alternatives →
- 14
- 15
A gravity simulator, with updated movement controls
2016 · valentinvichnal.github.io · its alternatives →
- 16
Second only to working at Space X
2015 · kerbalspaceprogram.com · its alternatives →
- 17
A space shooter that bends trajectories with gravity
2022 · facebook.com · its alternatives →
- 18
Cosmic characters for digital products
2022 · spacers.wannathis.one · its alternatives →
- 19
Gravity/▲5Test create celestial bodies warp the fabric of space-time..
2017 · lab.nationalmedals.org · its alternatives →
- 20
- 21
android game space cosmos astronomy planet arcade gravity
2021 · play.google.com · its alternatives →
- 22
I started teaching my daughter physics by showing her how things actually work - plucking guitar strings to explain vibration, mixing paints to understand light, dropping objects to see gravity in action. She learned so much faster through hands-on exploration than through books or videos. That's when I realized: what if I could recreate these physical experiments as interactive simulations? Lumen is the result - an interactive physics playground covering sound, light, motion, life, and mechanics. Each module lets you manipulate variables in real-time and see/hear the results…
Jan 2026 · projectlumen.app · its alternatives →
- 23
- 24
Build and manage space outposts on the Moon and Mars in this realistic simulation game. From the first step on the Moon to Mars colonization, launch rockets, take care of your astronauts and expand your base as you explore the cosmos. No grind, just pure management and exploration fun.
2023 · store.steampowered.com · its alternatives →
Also compare
- Gravity – Interactive solar-system simulator, from Newton to Einstein alternatives
- Harmony of the Spheres – Gravity Simulator alternatives
- Lunar lander-type game with computational fluid dynamics alternatives
- Atlas of Space alternatives
- gravity.js - Beta alternatives
- Rocket Launch and Orbit Simulator alternatives
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →