Imperial Collection includes
- Crusader Kings II
- Crusader Kings II: Dynasty Shields
- Crusader Kings II: Mongol Faces
- Crusader Kings II: Songs of Albion
- Crusader Kings II: Songs of Faith
- DLC - Crusader Kings II: Ruler Designer
- Crusader Kings II: Songs of the Holy Land
- Crusader Kings II: African Unit Pack
- Crusader Kings II: Songs of the Caliph
- Expansion - Crusader Kings II: Sword of Islam
- Expansion - Crusader Kings II: Legacy of Rome
- Crusader Kings II: Byzantine Unit Pack
- Crusader Kings II: Dynasty Shield II
- Crusader Kings II: Songs of Byzantium
- Expansion - Crusader Kings II: Sunset Invasion
- Crusader Kings II: Russian Portraits
- Crusader Kings II: Russian Unit Pack
- Crusader Kings II: Songs of the Rus
- Crusader Kings II: Mediterranean Portraits
- Expansion - Crusader Kings II: The Republic
- Crusader Kings II: Songs of Prosperity
- Crusader Kings II: Hymns to the Old Gods
- Expansion - Crusader Kings II: The Old Gods
- Crusader Kings II: Norse Unit Pack
- Crusader Kings II: Norse Portraits
- Crusader Kings II: Celtic Portraits
- Crusader Kings II: Celtic Unit Pack
- Crusader Kings II: Dynasty Shield III
- DLC - Crusader Kings II: Europa Universalis IV Converter
- DLC - Crusader Kings II: Customization Pack
- Expansion - Crusader Kings II: Sons of Abraham
- Crusader Kings II: Military Orders Unit Pack
- Crusader Kings II: Warriors of Faith Unit Pack
- Crusader Kings II: Hymns of Abraham
- Crusader Kings II: Saxon Unit Pack
- Crusader Kings II: Finno-Ugric Unit Pack
- Expansion - Crusader Kings II: Rajas of India
- Crusader Kings II: Turkish Unit Pack
- Crusader Kings II: Turkish Portraits
- Crusader Kings II: Songs of India
- Crusader Kings II: Persian Unit Pack
- Crusader Kings II: Persian Portraits
- Expansion - Crusader Kings II: Charlemagne
- Crusader Kings II: Early Western Clothing Pack
- Crusader Kings II: Early Eastern Clothing Pack
- Crusader Kings II: Dynasty Shields Charlemagne
- E-book - Crusader Kings II: The Song of Roland
- Expansion - Crusader Kings II: Way of Life
- Crusader Kings II: Iberian Unit Pack
- Crusader Kings II: Iberian Portraits
- E-Book Crusader Kings II: Tales of Treachery
- Expansion - Crusader Kings II: Horse Lords
- Content Pack - Crusader Kings II: Horse Lords
- Crusader Kings II: Orchestral House Lords
- Expansion - Crusader Kings II: Conclave
- Content Pack - Crusader Kings II: Conclave
- Crusader Kings II: Viking Metal
- Expansion - Crusader Kings II: The Reaper's Due
- Content Pack - Crusader Kings II: The Reaper's Due
- Crusader Kings II: Full Plate Metal
- Expansion - Crusader Kings II: Monks and Mystics
- Crusader Kings II: Hymns of Revelation
- Expansion - Crusader Kings II: Jade Dragon
- Expansion - Crusader Kings II: Holy Fury
- Music - Crusader Kings II: Pagan Fury
- Music - Crusader Kings II: Pagan Fury - Warrior Queen