Regulating the water level in hydraulic locks is at the heart of the addicting water puzzle game Sluice Shift. Rotate massive paddle wheels to pump flow between isolated compartments, carefully level depth, and only swing heavy doors open with equal balance on both sides. Safely guide convoys of ships through dozens of picturesque canals, collect hundreds of unique flags from around the world, solve daily challenges and enjoy the endless harbor mode in Sluice Shift.