The Trainyard Android App by Noodlecake Studios Inc is a puzzle game where the object is to get each train to a goal station. Red trains go to red stations, blue trains go to blue stations, etc. You control the trains by drawing track for them to follow. There isn’t a time limit or even a score; the only thing you need to do is figure out a solution for each puzzle.
The game seems easy at first but quickly becomes more difficult. As you progress through the levels you will have to use color theory to combine trains of different colors, use timing to merge and split trains. The graphics are simple which is nice for very complex puzzle games like this one.
Overall, this is a very challenging puzzle game. At the time of this review the Trainyard Android App is $0.99. There is also a free version available for you to try called Trainyard Express.