One-Line Factory

Draw one conveyor. Bring a tiny factory to life. Connect IN to OUT with a single continuous line, guide parcels through numbered stations in order, then press Run and watch your plan work. Can you deliver every parcel with a shorter, smarter route? 36 PUZZLES. SIX DEPARTMENTS. Discover new rules as you move through the factory: one-way gates, fast and slow tiles, limited belts and turns, crossings, and timed shutters. Take your time planning; the delivery deadline matters when you run the line. SOLVE IT. THEN MAKE IT BETTER. Earn three independent stamps for completing a board, using fewer tiles, and making faster deliveries. Replay to improve your best results and see what remains for your next stamp. A LITTLE HELP WHEN YOU NEED IT Draw with one finger and drag backward to erase. Contextual tips introduce new mechanics. Basic one-cell hints remain available offline after your full-hint tokens run out. KEEP GOING IN ENDLESS SHIFT Unlock generated factory floors and see how many increasingly demanding shifts you can complete. PLAY YOUR WAY Core gameplay works offline, with local saves and no account required. Adjust text size, reduced motion, high contrast, music, sound, and haptics. Play in ten interface languages. Free and supported by ads, including menu banners and paced interstitials. Optional rewarded ads can provide extra hint help or an Endless Shift revive. Ads require an internet connection. No in-app purchases.