Castlelands - Real-time Classic RTS Strategy Game Android Game Description:
The player has a castle around which a settlement can be built. There are defense towers and buildings for getting resources.  You can summon heroes and create an army in the castle. Warriors can either be used to defend the settlement or can be sent to attack the enemy settlement.
The gameplay is too simple for complex maneuvers, so it is better to get more units in the game. The player wins after he manages to destroy the enemy castle. There are 20 heroes and 9 types of towers. All buildings can be upgraded to higher levels. You can play both online and offline.