Replica is a really challenging game about cloning blue balls to make sure all of the holes are filled in. Use have a lot of dividers at your disposal which split a single ball into two in different directions. But there is a catch: you have to use all of the dividers at your disposal. You must not even miss one!!
With 30+ levels with increasing difficulty, Replica is going to be the perfect game to play when relaxing, while still fueling you brain power!