My team and I are currently developing a flexible multi-use server software for use with Unity. Of course we’ll need a server side physics engine.
The question is:
Is there a possibility to use a raw Unity physics engine without starting a whole Unity instance with graphics and unneeded computations?
If yes, where should I look?
If no, what is the best way to disable all unneeded graphics and computations in Unity’s instance to reduce an overhead to a minimum.
Also how does it look from the legal side to use a part of Unity for commercial use.