Use the elements of earth, fire and water to fight the enemy in this tower defense game.

Your goal is to not let the enemies through the maze, once 20 enemies make it through the game is over.

Use your money carefully. Strategically place towers and upgrade them to defend against the ever-more-powerful enemy waves.

Some of the enemies can only be killed with air defense towers (the 8th level is the first with these).

Periodically you will earn a wood bonus that will allow you to research new technologies this will make it possible for you to buy the more powerful towers.