Ballista Man

The not entirely far-sighted king sent his entire army to the front. But by a tragic coincidence, the city was attacked by crowds of enemies. Fortunately, one warrior remained in the city because he overslept. Now only he has to defend the city. The king, although stupid, is respected. He will be on the battlefield. By the way, he also needs to be protected.
The mount and blade of our king's sword broke. All he had left was his shield.
Castle defense, tower defense is the main goal of this game. The siege of the tower continues both in winter and summer.
It's not even a catapult! It's good that you're not an archer and you don't have a ballista bow.
There are only 20 levels, in which increasingly powerful opponents gradually develop.
With only a ballista in your arsenal, you try to destroy the advancing enemy.
Once the enemies break the small fence in front of you or seriously hurt people, it's game over.