Castle Jam

This is a Puzzle-Rpg game.
You should solve castle puzzles on grid board. To do this; drag and release castle parts on to grid cells. Merge at least 3 same type of castles and build bigger castles. Each castle creates an unique unit. Bigger castles create better units. Gather units and create your own army. Finally, make battles with enemy armies. Defeat all of them and move forward on story.