Enlist the help of UFOs to collect and evaporate water! Use the falling blocks to contain the water for collection by building Water Walls, but beware not all UFOs are as friendly as they seem. Water Walls is a classic easy-to-play hard-to-master block stacking game.

Use the solid blocks to build your pools, and the void block to etch a perfect strategy where each additional pool multiplies your score.

Gameplay only ends if you loose too much water over the edge of the map and beware, the better you become the more challenges are thrown at you: UFOs that freeze your pools, mines, rain and more.

Craft your own strategy with the help of a Mothership to challenge the leader boards.