Grow Castle

Tower defense games are pretty straightforward, and usually involves building defenses against incoming waves of enemies. In the case of Grow Castle, it’s about gathering enough forces in your castle.
 
In Grow Castle, players can use more than 120 unique heroes and their skills, not to mention that all of the units can be upgraded. It’s also possible to build new colonies and hire workers, which generates gold. The money is necessary to buy new units and update the old ones.
 
Players can also join online guilds, which are very useful if they want to community and play with other people from all over the world.