u/ApproximatedVastness

I've only heard of SpaceEngine and UniverseSandbox, both of which cost around 29€. Are there any free alternatives out there?

I'm currently developing OpenVerse, a free and open-source alternative to Universe Sandbox, where anyone is able to contribute. The goal is to not only let users discover different stars and solar systems, but also play around with physics, planet collisions, and supernovas.

I'm curious if anyone knows of other simulators that could compare to this, just so I know what I'm up against. So far, I've only found a few web apps, but they feel more like basic visualizers than actual simulators.

Thanks in advance.

Earth viewed in OpenVerse