I want to create tower defense game. I want to create trajectory missile. It’s have rigidbody. Example : https://vilbeyli.github.io/Simple-Trajectory-Motion-Example-Unity3D/
I want to know : How much “Can I add rigidbody in my mobile game” ? It’s trajectory missile.
Rigidbodies can absolutely be used in mobile games. And like everything on any platform, if you use enough of them, you might have performance issues.
However, how many that takes is completely dependent on the rest of your game, as well as on your mobile hardware. There really is no rule of thumb.