It should work for all the games But i Think they just did not test them all
You can message them and submit the game you wish it would work with and my understanding is that they would look into it and make specific game profile that they would put on their platform.
The box you see is some sort of box/transmitter that communicate with their software in the pc. It is like a center of tramsimmiom of the signal from all the sensors to the pc . They call it "main hub"