Crusader Kings III's sandbox nature allows for countless unique campaign narratives. However, certain starting positions and historical contexts offer particularly compelling experiences and distinct strategic challenges. These specific campaign guides aim to provide a roadmap for some of the most popular and rewarding playthroughs.
The Rise of the Byzantine Empire:
Starting as the Byzantine Emperor in 867 or 1066 presents a unique challenge of managing a vast, diverse, and often fractious empire. Your primary goals will be to maintain the integrity of the Empire against internal factions and external threats like the Seljuks and Normans. Focus on reforming the Imperial Elective succession law to prevent disastrous succession crises. Utilize the 'Imperial Authority' mechanic to consolidate power and manage your powerful vassals. Reforming the Orthodox faith or dealing with heresies will also be a constant concern.
The Viking Age:
Playing as a Norse pagan ruler, such as Ragnar Lothbrok's sons in 867, offers a dynamic and aggressive playstyle. Your initial focus will be on raiding for wealth and prestige, and then on reforming your pagan faith to establish a stable kingdom. The 'Great Holy Wars' mechanic for reformed pagans can lead to rapid territorial expansion. Be prepared for constant warfare and the need to manage your warrior culture's traditions. Converting to a feudal or clan government type will be a crucial late-game step for long-term stability.
The Iberian Struggle:
The Iberian Peninsula is a hotbed of conflict between Christian and Muslim rulers. Playing as a ruler within this region, whether Christian or Muslim, involves navigating a complex web of alliances, holy wars, and internal strife. The 'Iberian Struggle' mechanic introduces unique events and objectives that can lead to the unification of the peninsula under one faith and culture. Focus on securing your borders, managing religious tensions, and strategically intervening in the ongoing conflicts to your advantage.
The Mongol Invasion:
Starting as a ruler in the path of the Mongol Empire, particularly in the 1066 or 1220 start dates, presents an existential threat. Survival is your primary objective. You will need to employ cunning diplomacy, exploit any internal weaknesses within the Mongol hordes, and potentially seek alliances with distant powers. If you manage to survive the initial onslaught, you may have opportunities to carve out your own dominion from the shattered remnants of the Golden Horde.