Celestia is an application for real-time 3D visualization of space, with a detailed model of the solar system, over 100,000 stars, more than 10,000 galaxies, and an extension mechanism for adding more objects.



Gravity Simulator is described as 'Gravity and space simulator that allows you to learn about the gravitational force and explore and learn about space. Change the value of the gravitational constant, increase the mass of Jupiter to see how doing so would affect the solar system and much, much more!' and is an website in the education & reference category. There are five alternatives to Gravity Simulator, not only websites but also apps for a variety of platforms, including Windows, Linux, Mac, visionOS and Humble Bundle apps. The best Gravity Simulator alternative is Celestia, which is both free and Open Source. Other great sites and apps similar to Gravity Simulator are Universe Sandbox, Digital Universe Atlas, Mitaka and Spatial Portal.
Celestia is an application for real-time 3D visualization of space, with a detailed model of the solar system, over 100,000 stars, more than 10,000 galaxies, and an extension mechanism for adding more objects.



Universe Sandbox is an interactive space simulator for Windows based PCs.
Unlike most astronomy software that just shows you what the sky looks like or where the planets are, Universe Sandbox is a powerful gravity simulator. You can add another star to our solar system and watch.


The Digital Universe Atlas incorporates data from dozens of organizations worldwide to create the most complete and accurate 3-D atlas of the Universe from the local solar neighbourhood out to the edge of the observable Universe.

Mitaka is software for visualizing the known Universe with up-to-date observational data and theoretical models. Mitaka users can seamlessly navigate through space, from the Earth to the edges of the known Universe.




Set up a Portal in your real-life room, and seamlessly step into any spatial worlds you create with AI.



