Defender Of Tower 4.3

The city was attacked by evil invaders, and now the task of protecting civilians lies with you!
Help stop the attack, repelling wave after wave of enemy attacks!
At your disposal is a gun which can be improved and used as a powerful weapon to build strength.
But if that is not enough, you have to put mines under the city wall, and if necessary deploy a super bomb that can destroy all the enemies at the same time!
However, the additional might will cost you in gold!