I played this game from last one month, game concept is good but after unlock the different factorys all are same no difference between levels of these factorys only names different. In this one month period I unlocks 11 factorys. In factory names all are different like basic sawmill, advance sawmill, computerized, etc present iam at 11 level that is nano sawmill but in this level all machines are same like previous levels this is time waste game. Please don't instal this garbage.