We have set up an in-house usability laboratory to perfect our games and guarantee our users ultimate entertainment. The lab contains a test room and an observation room that are separated from each other by a one-way mirror. Lars, who runs the laboratory, can therefore observe the test subjects’ reactions in detail. The testers either play the games on mobile devices or on PCs. In addition, there’s a living room with a couch and a big flat-screen TV so that you feel like you’re at home when you’re playing and there’s also a conference room where several people can take part in a test together. The rooms are fitted with a few cameras which record the testers’ facial expressions and gestures while they play.