A crate-pushing puzzle with a clock made of water, solve each room before the rising tide floats your crates off and drowns your path.
Push crates onto their target tiles, one shove at a time, with no pulling, the classic crate-sorting puzzle. But the water level keeps rising in real time: flooded crates float and drift, and deep water is deadly to you, so you have to solve the layout under genuine time pressure rather than at your leisure.
Push-only crate sorting on a grid is Sokoban, a genre defined by having all the time in the world to think.
The original hazard removes exactly that: the water level rises in real time, flooded crates float and drift, and deep water kills you.
Taking away deliberation changes which solutions count. A Sokoban solve is a plan you execute; under a rising flood the optimal plan may be unreachable, so the right answer becomes the adequate one you can complete before the board changes underneath you.
Tide Crates is an original free browser game that adds a real-time rising-water hazard to the classic grid-based crate-pushing puzzle, turning a calm logic genre into a race against the flood.