This is a free prequel to Trainyard. The goal of the game is to draw paths from point A to point B, connecting the entrance and exit of the same color. But not everything is so simple, because as you progress, the task will become more complicated and new mechanics will appear, such as crossing trains to create a new color, or merging two trains into one, allowing only one train to pass through the gate. I will also note that if you have problems with the passage, you can go to the game’s website and see literally thousands of solutions to any level. Helped me out a couple of times to understand the logic of the game