Space Engine
Universe Sandbox
Celestia
Stellarium
Sky Guide
Cosmonium
A Photo A Day
Gravitational n-body and space simulator written in JavaScript and WebGL.

Universe Sandbox
Space Engine
Celestia
Stellarium
Sky Guide
Cosmonium
Galaxy Engine
A universe simulator made of living particles: collide galaxies, watch a black hole bend light and play physics games. Free on Apple Vision Pro, Apple TV and Android, with no ads.

Which is more popular?
Based on our record, Gravity Simulator seems to be more popular. It has been mentioned 2 times since March 2021.
Website, pricing, platforms and company facts side by side.
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Gravity Simulator
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| Website | gravitysimulator.org | everdust.ai |
| Pricing | — | |
| Company | — | Startup from the United States · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of Gravity Simulator yet.
Everdust is a universe simulator made of living particles: every world is a live simulation, not a video. Two galaxies collide with up to about a million stars, each one pulled by gravity live, a black hole bends light, and a star is born from a collapsing cloud. Narrated science stories take you...
What each product offers, as listed by its team.

Possible disadvantages
An editorial look at what each product does well and who it suits.

Overall verdict
Why this product is good
Recommended for
No analysis of Everdust yet.
How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using Gravity Simulator and Everdust. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

Computer says yes: https://gravitysimulator.org/ https://spaceengine.org/ Once the mass, velocity, heading of an object is known it becomes easier to track and fine tune parameters meaning time of intersect with earth can be calculated... - Source: Hacker News / over 3 years ago
Https://gravitysimulator.org/ 3D Gravity Simulator. Simulate the solar system, exoplanets and even colliding galaxies. Add, delete and modify planets, and change the laws of physics. Source: about 4 years ago
Tracking Everdust since Oct 2026.
When comparing Gravity Simulator and Everdust, you can also consider the following products.

Space Engine is a realistic virtual Universe you can explore on your computer.
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Universe Sandbox ² is a physics-based space simulator where you can simulate Events and even break physics and friction with certain features.
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Stellarium is a free open source planetarium for your computer.
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A window to the stars has never been more beautiful and easy to use.
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Cosmonium is a 3D astronomy and space exploration program.
Compare Cosmonium to Gravity Simulator or Everdust: