Railways on Paper · Let the Numbers Guide You

Every row and every column has a number beside it, telling you how many of its cells hold track. Start at the entrance on the edge of the board, join straight and curved pieces into a single railway with no branches and no loops, and run it all the way to the exit. A warm hand-drawn paper look and a gentle soundtrack — pour a cup of tea, sit down, and lay the line at your own pace.

■ Exactly One Answer, Every Time
Every level is computer-verified to have a single unique solution, so numbers and logic are all you need — never guesswork. Rule out, step by step, which cells must hold track and which never can, and the route reveals itself.

■ 500 Levels, Small to Large
Start on a little 5×5 board and grow all the way to a wide 14×8 one. The difficulty rises smoothly, and the further you go, the more it makes you think.

■ Endless & Relax Modes
Pick a difficulty (Easy, Normal, Hard, Hell), choose whether to keep it steady or have it increase level by level, and enjoy an endless supply of fresh boards. Relax mode has no timer — take as long as you like.

■ Daily Challenge
One puzzle a day, the same board for every player.

■ A Little Train & Medals
The moment your line connects, a little train rolls along your track and off the board. Campaign levels award Bronze, Silver or Gold based on how quickly you clear them — the better the medal, the more carriages your train pulls. Collect 60 achievements, and check the stats page for every piece of track you've laid and taken back.

■ Handy Marking Tools
Mark cells that can't hold track with ✕ (or switch them to trees and rocks), mark cells that must hold track but whose shape isn't settled yet with ?, and jot notes right in the cells. Ctrl+Z undoes any step, and if you're truly stuck you can turn on hints in Settings — three per level.

■ Two Ways to Place Track
Pick pieces from a radial dial right on the cell, or choose a piece from the side panel and click cell after cell — whichever feels natural. A built-in tutorial gets you going in two short levels.

■ 12 Languages
English, Traditional Chinese, Simplified Chinese, Japanese, Korean, French, German, Spanish, Italian, Portuguese (Brazil), Russian, Polish.

■ Play It Your Way
Resolution, fullscreen, sound and music volume, rounded or square corners, edge shadow, and the style of the ✕ mark — tune it all to your liking.