Event troops are special, non-reinforcing armies that aren't subject to the usual limitations on levies, mercenaries or retinues. They are created as a result of events in certain wars, and also appear for some characters in historical starts.
Each type of event troops has a "maintenance multiplier" between 0 and 1. Most event troops cost less to maintain than levies, and many types are free. Some automatically disband at the end of a war or under other conditions.
There are a few types:
- Rebels and loyalists may randomly appear on the side of the vassals or the liege in a faction war. They are more likely to join outnumbered sides, and are less likely to join a human-controlled character. They disappear upon the end of the war.
- Landless invasions: All wars involving a landless character invading a realm (peasant, heretic, religious and nationalist revolts; adventurers; decadence invasions; Rise of the Shia Caliphate) give the attacker a large event troop army. Except in the case of decadence invasions, the army persists upon victory.
- Hordes such as the Mongols get giant, attrition-free armies ("doomstacks"). The Mongols can periodically get reinforcements as well.
- Tribal rulers can get event troops from tribal council missions and (when Legacy of Rome is not enabled) tribal unit decisions.
- Prepared Invasion troops
- Minor clan uprisings can spawn huge numbers of event troops depending on the target Khagan's realm size. If the minor clan succeeds in the uprising, the event troops do not disband, and remain under the control of the new khan.
List of characters with event troops
In some historical starts, characters have their levies pre-raised, but at several times their normal size. Notably, all three participants in the Norman Conquest in 1066 have pre-raised levies. Since these event troops count as levies, characters cannot declare wars without dismissing them.
The amount of soldiers available is defined as a multiplier of the character's levies. Since the character's levies vary depending on his and his vassal's randomly-generated traits, the number of troops can vary significantly in different new games.
Other characters get permanent soldiers (and in some cases, ships) at start. These tend to be smaller than the above, but they last until depleted in battle.
- 769 - Early Middle Ages
- Tsenpo Purgyal Trisong Detsen of Tibet: 2800
- King Aurelio of Asturias: 1950
- 867 - Viking Age
- Satrap Vandad of the Karen Satrapy: 4608
- Marzoban Wahsudan of Gilan: 5013
- Khagan Árpád Álmos of Magyar: 9000
- Khagan Manasseh of Khazaria: 843
- Khagan Sokal of Cumania: 333
- Khagan Sol of Pechenegs: 1299
- Khagan Shilki of Bolghar: 525
- Khagan Kılıç of the Yabguid Khaganate: 525
- King Rurik of Holmgarđr: 676 + 40 galleys
- King Dyre 'the Stranger' of Könugarđr: 1078 + 30 galleys
- Hæsteinn of Retz: 1716 + 40 galleys
- King Haraldr 'Fairhair' of Viken: 465
- King Ivar 'the Boneless' of Suðreyjar: 5889
- King Halfdan 'Whiteshirt' of Jorvik: 11604
- Shah Ya'qub of the Saffarid Shahdom: 975
- Shah Nasr of the Samanid Shahdom: 2091
- Satrap Amir of the Shansabani Satrapy: 2160
- 936 - The Iron Century
- Emir Abu Tahir of the Jannabid Emirate: 1500
- Duke Cao Yuande of Guiyi: 900
- Chief Imran of Khozistan: 1000
- Eirikr 'Bloodaxe' of Ross: 2709
- King Hakon of Noregr: 750
- Duke Jingqiong of Yugur: 900
- 1066 - High Middle Ages
- Duke William 'the Bastard' of Normandy: 10092 + 180 galleys
- King Harold of England: 200
- King Harald Hårdråde of Norway: 11781
- Thakur Vijayabahu of Rohana: 21234
- Chief Hummay of Bilma: 3600
- 1204 - The Latin Empire
- Emperor Baudouin of the Latin Empire: 10296
- Emperor Henri of the Latin Empire: 30072
- 1220 - Age of the Mongols
- Khagan Temüjin of the Mongol Khanate: 50856
- 1241 - Rise of the Hansa
- Khagan Hülegü of the Ilkhanate: 98496
- Khagan Batu of the Golden Horde: 98496