1) I succeed to connect Unity and MaxMsp by OSC protocol. To do it, I used scripts from https://github.com/robertoranon/OSC-Unity5
Now I'm able to controll light in Unity by the Max loop. Next step will be to create a virtual scene in Unity, with ability to interact and connect a sensor to Max Msp
// I will think what could I create in Unity and try to develop it till Wednesday