can I do like this game in unity? what is the name of that technique that they use it ? Is there any websites that provide information about it ? how can I make a game like them ? Can I make it using C# script ?
You could access the gyroscope in Unity to determine the phones rotation and acceleration to make something like this:
Controlling a computer from a Unity game will be a little trickier though; you could probably do it using Unity’s built in networking but it might be too slow.
