Description

The screen shows a few horizontal lanes of a water lock system, like the Panama Canal. The ships need to cross the canal from one side to another. The player, as the canal manager, must safely guide the ships through the locks, fast enough to handle the traffic. To do this, he can adjust the water level in the locks and swap (drag-&-drop) the grid tiles. You can only swap tiles within the same vertical column.

A new ships enters from the edges of the screen, heading towards the locks. Within a certain time, it will cross the tile it's in. When the ship reaches the end of the tile, it will try to cross over to the next tile, i.e. enter the adjacent water lock. If the water level in the adjacent lock matches the level in the ship's tile, the ship moves on safely. If water levels don't match, the ship sinks. This repeats in every tile: once a ship crosses a tile (within a certain time), it will try to enter the adjacent tile. A warning light on the ship's bow alerts to any danger. The game starts out easy, with one or more empty tiles, and a slower pace. As the levels get harder, the ships keep coming at a faster pace.

Gestures

		The water level in each lock can be changed, by swiping up or down within a tile. The change in water level takes some time. The possible matching levels are not arbitrary: they're restricted to 3-4 discrete steps (color-coded). Transitional, in-between levels are not functional, and will cause the ship to sink.
		Besides changing water levels, the player can also swap (drag-&-drop) a tile with another tile within the same column. This can be done if the player sees better-matched level combinations elsewhere.
		If all the water levels in a lane match, the player can sweep them: by dragging across a lane, the ships in the lane will be quickly sent through the canal. If a water level is mismatched, or if there's a ship in the lane, the sweep will fail.
		With a double-touch, the player can send all ships quickly through the canal. If a water level is mismatched, or if there's a ship in the lane, the rake will fail.

The real Panama Canal

The real Panama Canal has specific water levels for ships to go over the land. In the game, water levels have no meaning. The goal is to create fast gameplay, not to copy the real canal.

Available at

Google Play Panama Canal
App Store Panama Canal