Galaxy Engine is a free and open-source particle physics software I have been developing. In this video I showcase some of the most important features.
You can find Galaxy Engine on Steam: https://store.steampowered.com/app/3762210/Galaxy_Engine/
You can also get it for free and check the source code on GitHub: https://github.com/NarcisCalin/Galaxy-Engine
Join the Galaxy Engine Discord community if you want to hang out and talk about space and programming! https://discord.gg/Xd5JUqNFPM