One Line Zip Puzzle: Domiline

Domiline is a one line puzzle - the connect-the-numbers, zip-path family.

Every board is a hall of tiles with numbered desk bells on the floor. Draw one unbroken line that starts at bell 1, rings every bell in order and covers every tile exactly once. Each tile you cross lays a domino. When the last one is down, the whole chain topples, bell by bell, and the tiles flip to reveal a picture.

Every board is generated and then proved by our own solver to have exactly one solution, so there is never a guess to make. What the game grades is the clock: lay the chain fast enough for gold.

• DAILY - the same board for everyone, once a day. Keep your streak, share your result without spoiling it.
• LEVELS - 1520 boards in 36 halls. Each hall brings something new: walls, pillars, bridges, tunnels, ziplines, turntables, quiet bells, hexagon halls and more, over 30 twists in all.
• ENDLESS - a random board in the size you pick. Its code sits on the board: send it to a friend and you both play the identical hall.
• WEEKLY CHALLENGE - a fresh run of halls every week.

Made to respect your time:
• Gold, silver or bronze on every board, by how close you came to par.
• Hints come back on their own over time, or right away with a video.
• Undo any step: drag back over the line.
• A choice of palettes, high contrast and dark mode.
• Works offline. Tiny download.
• No sign-up and no accounts: progress stays on your device.