Insanely addicting, simple yet challenging. Fun even if you're not very good at it. There are leaderboards and daily challenges. There are no microtransactions or pay-to-play aspects. No internet connection required, making it ideal for flights or road trips with limited internet access. My only complaint is that the mobile version doesn't have the stats available on the PC version (unless they're somewhere different and I just don't know where to find them).

Simple to pick up, hard to master. With the fairly intuitive gameplay of touch to move trains/carriages, or drag to move lines, along with the steady humming background noise, you can play this relaxed and casually. However, if you do want to make perfect, rise in the leaderboards, or play in extreme mode (no moving rail or trains after you place them), this is also a game for the extreme planners out there. The game's flexibility on playstyle and enjoyment solidifies it as a top-notch game.

5 stars for style, 3 stars for gameplay. Visuals are perfection. The generative soundtrack is wonderfully creative, when it isn't stuck on a dissonant chord. Early and mid game is fun, but once you get deep enough into a game, the only way to really improve your score is by pausing and moving trains to full stations manually, which undermines the fun of designing a good system. Overall enjoyable for a few weeks, but the game is generally less fun the better you get