Crusader Kings II: Royal Collection includes the Base Game, ALL Expansions ever released.

Crusader Kings II: Royal Collection contains:

• Crusader Kings II (Base Game)
• Crusader Kings II Sword of Islam
• Crusader Kings II: Legacy of Rome
• Crusader Kings II: Sunset Invasion
• Crusader Kings II The Republic
• Crusader Kings II: The Old Gods
• Crusader Kings II: Sons of Abraham
• Crusader Kings II: Rajas of India
• Crusader Kings II: Charlemagne
• Crusader Kings II: Way of Life
• Crusader Kings II: Horse Lords
• Crusader Kings II: Conclave
• Crusader Kings II: The Reaper's Due
• Crusader Kings II: Monks and Mystics
• Crusader Kings II: Jade Dragon
• Crusader Kings II: Holy Fury