How to play Train Tracks

Build one continuous railway from the entrance to the exit. The numbers show how many track pieces each row and column contains. When the line is complete, the train sets off!

How to play

1. The line starts at the entrance and ends at the exit, both on the edge of the grid.
2. Each number tells you how many cells in that row or column contain track.
3. The track is one continuous line: no branches, no crossings, no loops.
4. Drag from cell to cell to lay rails, or tap near a cell edge. Use Mark (✕) for cells without track.
5. A wrong rail counts as a mistake and is not placed. Numbers turn green when a row or column is complete.

Free online train tracks puzzle

Train Tracks is a logic puzzle: connect the entrance and the exit with a single railway line that never branches or crosses itself. Every level on PuzzleWorld is randomly generated and checked by a solver, so there is always exactly one solution.

Easy levels show many pieces from the start; on medium and hard you get fewer hints and bigger grids. Finish the line and a little train runs along your track to the exit.

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