Merge Defense!

Merge Defense is an easy to learn, hard to master Tower Defense game. Simple controls, turn based game play, and tactical depth makes this game best time killer game for a daring mind.
How to play:
• Enemy Blocks advances each turn;
• Place new defenders on the board to protect from enemies;
• Defenders shoot automatically each turn;
• Merge two defenders of the same level to upgrade its power;
• Collect Keys and Gems to use power ups and unlock new defender;
• Survive as long as you can;
Game Features:
• Challenge brain game.
• Beautifully easy and simple, no pressure and no time limit.
• It's an offline game.
• It is a completely free game.
Have fun!