Choo, choo! Well, not quite. Trainyard Express is not what you might think it is. Yes, you have trains, tracks, and terminal stations. But what if I told you that the locomotives can mix colors, that they can combine into one, or that they can pass through one another? The only thing that's train-like in this pure puzzle game is the visual theme.
Truthfully, what we're dealing here in each level is with several faucets that will spill a certain number of colored elements (locomotives). You must direct these locomotives to their correct recipients by laying out tracks.
The first few levels are absurdly simple. But keep at it, and you'll soon be facing stompingly complex scenarios. As the developer indicates, you'll be thankful for having the chance to accustom yourself with how everything works before the real puzzles come up. Also in support of this induction method is the tutorial system, which is exceptionally well designed. The different concepts are not explained all at once but are well spread throughout the sixty levels.
The elements that you will have to juggle while playing Trainyard Express are visual programming, synchronization, and color theory.
Trains come in different colors, and while the initial levels don't care too much about this fact, in the later ones, terminal points (which are colored) will require that you bring in matching locomotives. Also, in case you don't have the correct ones, you will have to mix and match to obtain the right ones using the basic mixing rules for secondary and tertiary colors. Isn't that exciting?!
I could rave on about how well these ideas are implemented into this tight puzzle game, but the sad truth is that the sixty levels of Trainyard Express come and go rather quick. However, for a price of a coffee, you can purchase Trainyard, which comes with a hundred and fifty more levels and includes a new game mechanic.
Trainyard Express feels like a well-designed appetizer. It contains many thought-provoking and satisfying levels, but solving them is so much fun that the game feels too short at the end of it - unless you get the full Trainyard game. In this respect, Trainyard Express is the best kind of demo app that I have ever played.