A tower defense game where you mainly control a cannon which

- auto attacks the nearest enemy

- or it attacks the enemy you selected

Besides that a fortune wheel appears from time to time which you can spin and stop to get bonuses:
- Blocking wall

- Kill 2 nearest enemies 

- But a ballista trap

- Attack speed, damage increase (but also decrease if you are unlucky!)

- Explosive Shot

Hold your ground and prevent enemies entering the castle! Fight off all the enemy waves and you win.