I am creating a fully working accurate aero/hydro dynamic system in Godot 3.6 with regular nodes using NONE of the internal phsyics other than choosing to utilize Bullet Engine for gravitation I imagine. I wanted to try something different and all of the fuild sims I see on here are either 2d, similar, or just not ready for game development quite yet. So this is my attempt at prototyping one in an underdog engine ;). Let me know what you think so far! It utilizes webGL, so keep that in mind when you run it as integrated graphics for your browser may not be sufficient and if you do use integrated, enable hardware acceleration if you can. It helps a lot. That goes for any html5 that I know of. So yes, this is only html5 right now but let me know your thoughts and please dive into discussions if you like on the page. LINK: Fluid Dynamix by mojogo