Experience the ultimate survival challenge in this exciting wave-based strategy game.

Explore different maps and meet up with your friends to face the hordes of enemies together.

By using one of the many upgrade choices and map features you will be able to increase your power to defend yourself.

Use your money to open doors and clear debris, to explore more and more of the beautiful landscapes.

Choose between different difficulty settings to adjust the game to your own skills and try your best to unlock even the hardest achievements.