Defend your Imperial Castle from the Hansen Empire in this classic and fun tower defense strategy game!
Assemble your empire defense army and fight the invaders who invade your kingdom!

This is a classic tower defense game that is also challenging for experienced players. Organize your Dr. Philip, Bomber, Sniper, and Machine Gunner powers and equipment to eliminate a wave of enemy threats in dozens of levels. Crossing dense forests and snow-covered mountains, defeating a group of enemy troops consisting of sophisticated equipment such as machine guns, infantry vehicles, tanks and aircraft.

Features:
- 15 maps made with various themes
- 3 game difficulty modes that challenge your limits
- 4 basic defensive characters and dozens of upgraded character skills
- Strong artillery and air fire support in the battle
- Quickly replenish gold coins and health in battle
- Use 15 stage levels to defend against powerful enemies
- Use 2x game speed to quickly destroy enemy forces