I could hear screeching tyres and gunshots coming from video game machines, the melodic sounds of fruit machines and some general hubbub of laughter, talking and other noise. I was standing at one end of the air hockey table, with my opponent on the other side. Yet, even though it felt like we were at some sort of amusement arcade, we were both at home and hadn't left the house. We were just about to play a game of Klask.