Battle Plan is a free tower defense game developed by Art-Storm for Android devices. The game is set in an ancient world filled with dangerous creatures like zombies, mages, and spiders. The objective of the game is to defend your tower against hordes of enemies using powerful cannons and spell cards.

The game features an RPG-style skill branch that allows you to improve your towers and skills. Battle Plan is divided into chapters, each with a strong boss and hundreds of enemies to defend against. You can explore different worlds such as Sunny Woodland, Deep Dungeons, Icy Mountains, Molten Caverns, and others.

In Battle Plan, you can compete with other users from all over the world in the best players ranking. The game features a variety of spells such as fireballs, lightning, poison, and mines, which you can use to create unique and powerful attacks. You can also use three different cannons - Ballista, Skully, and Bombarda - that work in different modes.

Overall, Battle Plan is an exciting tower defense game that will test your patience and skills in an endless battle between good and evil. With its RPG elements and strategy games, Battle Plan is sure to keep you engaged for hours.