Fill Tracks

Play Online Fill Tracks

You guide a little glowing line across a grid of orange tiles. You use the arrow keys—or your finger or mouse—to stretch the line up, down, left, or right. The goal is to cover every orange tile with your path just once, without getting stuck.

Each level hides a maze of blocks, walls, or edges that stop the line. You must think ahead and plan your moves. If you cross your own path or leave a tile uncovered, you might need to restart. That’s okay—you try again until the puzzle clicks.

As you go, the puzzles get trickier. Some levels feel like a cozy brain teaser. You fill more space, face more obstacles, and feel proud each time your line covers every tile. Sometimes a restart matters less than how calm and clever each move feels.