Harborline: Cargo Puzzle

Every load has a dock.

Harborline is a logic puzzle about planning deliveries. Each harbor starts with a fixed set of cargo and up to four docks, A to D. Every dock asks for one exact load — a chest, a container, a cargo tower. Combine two matching loads that sit side by side and choose which of the two spots the bigger load lands on. Fill every dock exactly and clear the quay completely to win.

Nothing refills. Nothing falls. There is no timer. A load sent the wrong way can strand a dock, so every move is a decision you can think through — and Undo is always free.

204 HARBORS TO SOLVE
Thirteen chapters grow from small 4×4 harbors with two docks to busy 7×7 ports with four. Every level ships with a verified solution.

NINE KINDS OF CARGO
Parcels become crates, crates become barrels, and on up through chests, containers, pallets, cargo towers and fuel tanks to a whole freighter. Each one is drawn and colored so you can read the harbor at a glance.

MAKE A CLEAN DELIVERY
Solve a level without hints or undos to earn a Clean Delivery. Replay any cleared level to improve it, and see where you stand among the Harbormasters.

TRY 40 LEVELS FREE
The first three chapters are free and introduce all four docks. A one-time Pro purchase opens all 204 levels and premium harbor themes. Levels unlock in order as you play. StackForge Play Pass also includes Pro while subscribed. Prices and terms are shown by Google Play before purchase, and purchases can be restored from Me or the Pro screen.

NO ADS. NO ENERGY. NO PAID RETRIES.
Play offline without an account. An internet connection is needed only for the Harbormasters rankings and optional account features.

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