Puzzle / 2–8 min

Number Trail

Slide numbered tiles into order across 24 solvable stages. Start on a compact 3×3 board, move up to 4×4, and use the highlighted neighbours of the empty space to plan a calm route home.

Play now ↗
TouchMouseKeyboardGamepad mapping
Number Trail — original illustration
Number Trail — actual game board
Actual game board · Chromium

How to play

  1. Tap a numbered tile directly beside the empty space to slide it. Diagonal tiles cannot move.
  2. Arrange numbers left to right, top to bottom, leaving the empty space in the bottom-right corner.
  3. Stages 1–12 use 3×3 boards and stages 13–24 use 4×4. Every shuffle uses legal moves from the goal; shuffle length is not a claim of minimum solution length.

Make your move

  • Touch or mouse: tap a cell. Undo reverses the last move without refunding the move count.
  • Keyboard: arrows select a cell; Enter or Space plays it. Use Tab to reach Undo and player controls.
  • Standard gamepad: D-pad selects and the primary button plays. Physical devices have not been tested.

A small head start

  • Build the first row before arranging the next.
  • Keep space to circulate tiles around a small loop.
  • The green tiles can move now. Undo helps recover from an accidental tap.

Compatibility notes

Touch and keyboard controls are implemented. Physical phones, controllers and Tesla browsers await device testing.

Play style: Point and move. Local progress restoration is available for this game.

Check this game on your device ↗

Compatibility · Input check

Credits & source

Denny Games · MIT. Source code

Updated: 2026-10-22. Free to play. Pages may contain disclosed affiliate links; Google ads are inactive.

Next little escape