Free and open source 2D space flight simulator. Gravity-wise should be pretty realistic (except 2D, but orbits actually are quite 2D in reality). Missing athmospheric drag and such yet though. Contributions welcome!

https://flanets.io

npm i

npm run dev

––> http://localhost:8080/

npm start

• http://www.braeunig.us/space/orbmech.htm