Is it a true NxN Newtonian mass sim with real M and G constants plugged into the g=GM/r^2 equation?
I love real mass games as they can be so useful when planning orbital maneuvers!
Here’s a Python sim (sorta like a game) that I wrote ~two years ago for doing NxN massive body simulation on a desktop with OpenVR/SteamVR support!!. It’s not in Blender game but all code is Python3 compatible. I wrote the trigonometric Newtonian mass functions using pure vectorized matrix math for efficiency in the NxN mass and particle calculations. I have written various examples using pure python, numpy and Tensorflow.
I called it GravityVR and I made it available on my Github page for the scientific community. It may contain some useful bits such as the extras for some trigonometric and force related functions.
It seems accurate. Even at large timesteps there’s a clear helion precession that can be observed being generated from the tidal force of even Earth sized masses. and it’s very fast at computing the accelerations of a large number of bodies due to their mutual gravitational attractions.
The simple volumetric shaders are not especially brilliant, but they do look okay in stereo/VR:
It’s also very neat in VR (watching Jupiter tear Saturn’s rings to shreds after a close encounter in the “Saturn Vs. Jupiter” example). Also because everything is “to scale” it puts a very new perspective on just how small the Earth truly is compared to the size of it’s orbital diameter and the solar system !!!
Maybe it may help?