Trains.io 3D is an online HTML5 game presented by yiv.com, it's playable in browsers such as safari and chrome. You can play the game on smartphone and tablet (iPhone, iPad, Samsung, Android devices and Windows Phone). Trains.io 3D is slithering train game in 3d world. Become the grand trainin game by eating others and grow longer. Collect screws and toolboks to grow faster. Good Luck 89.86% of 2471 players like the mobile game.