From the Official Site:
A Magnificent Historical Fantasy
It was an era in which war begat war. Rival leaders fought for control, and uprisings spread throughout the land. Yet in the midst of this turmoil, there was one lord who wished for peace. His name was Lui Bei. Loved by his people and governing wisely, his only ambition was to have peace in his land of Xu and to live happily with his love, Diao Chan. But this age of war stood in his way. Xu was attacked by rebels, forcing Lui Bei to ask the great general Cao Cao, who was rising in power, for help in protecting his people.
- New "Agent Technology" allows for 500 soldiers on-screen at once - 5x more than the original Kessen.
- New weapons, tactics, and troops including elite-Horsemen and Elephant Cavalry!
- Devastating new Elemental Attacks including tornadoes, lightning strikes, and meteor showers!
- 3x the number of stages! Besiege castle walls, battle aboard moving ships, and stampede across open plains in 30 new stages!
- 8x the number of event sequences immerse you into this powerful epic!
- Experience battles firsthand - control generals and give orders at the squad level!