Symmetrain isn't quite like anything you've played. It shares a bit of flavor with an endless runner and a spot the difference game, but when you combine those features you get something that doesn't neatly fit into either category. Instead, you find yourself comparing pieces of the countryside as you look for inconsistencies in the scenery. Created by the studio behind About Love, Hate and the other ones as well as Tiny and Big: Grandpa's Leftovers, Symmetrain is simple, creative, unique, and surprisingly captivating.

A train glides slowly up the track in the center of the screen. Apart from being able to pull the emergency brake, however, you're not really concerned with what the train is doing. The scenery on the left and right sides of the track should be mirror images of each other. So, when you spot something that doesn't match up, give it a tap. Collect points for correct taps, eventually unlocking new trains and traveling to new destinations, each illustrated with Black Pants Studio's phenomenal artwork that's worth the price of admission on its own.

This "on rails" spot the difference gaming is all there is to Symmetrain. No coins, no in-app purchases, no crazy power-ups or stupid gimmicks to mess with. Just simple, relaxing object tapping. It's amazing how something this straightforward can be so entertaining. Symmetrain serves as a strong reminder that there are still great ways to spin old ideas into brand new gaming experience. All it takes is a slightly new perspective.