《十字军之王II》（Crusader Kings II）是Paradox Interactive开发发行的一款以中世纪中期至后期为背景的大型战略游戏，是《十字军之王》的续作。这款游戏的Windows版本在2012年2月14日发布，OS X版本则于5月24日发布。
在游戏中，玩家可以模拟控制769年至1453年间的一个中世纪王朝/共和国统治者，玩家可以挑选任意一个拥有伯爵以上土地的政权进行游戏。
《十字军之王II》采用了遗传、教育系统，未成年人可能继承父母或监护人的大多相貌特征、文化、宗教和技能，这一特点也为游戏内子嗣后裔的抚育和培养增加了变数。
通过战争、婚姻、暗杀等纷繁复杂的战略手段，玩家可在游戏内达成选择势力的胜利，游戏模拟的结局是开放性的，由玩家自行定义最终“胜利”的条件。
版本3.3.3说明：
1. 游戏现在已升级为64位应用，支持macOS Catalina 10.15或更高版本系统。
2. 修复了一些潜在的安全性问题
3. 此版本包含了游戏本体，以及迄今为止所有的扩展包，内容包，单位包及DLC共78个。具体如下：
Crusader Kings II 游戏本体
Crusader Kings II: Dynasty Shields
Crusader Kings II: Mongol Faces
Crusader Kings II: Songs of Albion
Crusader Kings II: Songs of Faith
Crusader Kings II: Songs of the Holy Land
Crusader Kings II: African Unit Pack
Crusader Kings II: Songs of the Caliph
Crusader Kings II: Byzantine Unit Pack
Crusader Kings II: Dynasty Shield II
Crusader Kings II: Songs of Byzantium
Crusader Kings II: Russian Portraits
Crusader Kings II: Russian Unit Pack
Crusader Kings II: Songs of the Rus
Crusader Kings II: Mediterranean Portraits
Crusader Kings II: Songs of Prosperity
Crusader Kings II: Hymns to 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
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
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
Crusader Kings II: Early Western Clothing Pack
Crusader Kings II: Early Eastern Clothing Pack
Crusader Kings II: Dynasty Shields Charlemagne
Crusader Kings II: Iberian Unit Pack
Crusader Kings II: Iberian Portraits
Crusader Kings II: Orchestral House Lords
Crusader Kings II: Viking Metal
Crusader Kings II: Full Plate Metal
Crusader Kings II: Hymns of Revelation
Content Pack - Crusader Kings II: Horse Lords
Content Pack - Crusader Kings II: Conclave
Content Pack - Crusader Kings II: The Reaper's Due
DLC - Crusader Kings II: Ruler Designer
DLC - Crusader Kings II: Europa Universalis IV Converter
DLC - Crusader Kings II: Customization Pack
Expansion - Crusader Kings II: Sword of Islam
Expansion - Crusader Kings II: Legacy of Rome
Expansion - Crusader Kings II: Sunset Invasion
Expansion - Crusader Kings II: The Republic
Expansion - Crusader Kings II: The Old Gods
Expansion - Crusader Kings II: Sons of Abraham
Expansion - Crusader Kings II: Rajas of India
Expansion - Crusader Kings II: Charlemagne
Expansion - Crusader Kings II: Way of Life
Expansion - Crusader Kings II: Horse Lords
Expansion - Crusader Kings II: Conclave
Expansion - Crusader Kings II: The Reaper's Due
Expansion - Crusader Kings II: Monks and Mystics
Expansion - Crusader Kings II: Jade Dragon
Expansion - Crusader Kings II: Holy Fury
