Uniduino is here! Check it out: https://www.assetstore.unity3d.com/#/search/uniduino
Make your game an experience. Connect Arduino to the Unity game engine with Uniduino.
Any electronic input or output that can be connected to an Arduino can now be connected to Unity.
Use simple, Arduino-like code to incorporate Arduino into your projects.
Works exactly the same on Mac and PC.
The game in the video actually works. It was made in Unity connected to Arduino using Uniduino and about six lines of code to sync the in-game events with the fan and the lights. Hardware used: fan, lights, 2 solid state relay's, hdtv, ps3 controller.