
Effect · every source
How to increase Size of Men-at-Arms Regiments in CK3
11 sources raise Size of Men-at-Arms Regiments and 9 lower it in the game files of patch 1.20.0.3.
men_at_arms_limitIn Crusader Kings III, 11 sources raise Size of Men-at-Arms Regiments and 9 sources lower it. Biggest raises: Standing Armies +5, Men-at-Arms +4, Frugal Armorers +3, Household Soldiers +3 and Military Academies +3. It goes down with Monastic Order -100, Ecclesiastical -3, Only the Strong -2 and 2 more. Patch 1.20.0.3, from the modifiers of traits, perks, traditions, buildings and the rest of game/common.
The biggest boosts
+5Standing ArmiesInnovation · Characters of this culture
+4Men-at-ArmsInnovation · Characters of this culture
+3Frugal ArmorersCultural tradition · Characters of this culture
What raises Size of Men-at-Arms Regiments (11)
Traits (3)
Cultural traditions (2)

Characters of this culture
tradition_frugal_armorsmiths· game/common/culture/traditions/00_combat_traditions.txt
Characters of this culture
tradition_warrior_culture· game/common/culture/traditions/00_societal_traditions.txt
Innovations (4)

Characters of this culture
innovation_standing_armies· game/common/culture/innovations/00_late_medieval_innovations.txt
Characters of this culture
innovation_men_at_arms· game/common/culture/innovations/00_high_medieval_innovations.txt
Characters of this culture
innovation_house_soldiers· game/common/culture/innovations/00_early_medieval_innovations.txt
Characters of this culture
innovation_mustering_grounds· game/common/culture/innovations/00_tribal_innovations.txt
Buildings (1)

Holder
Levels 1–3: +1 to +3 (3 levels give it)
military-academy· game/common/buildings/00_duchy_capital_buildings.txt
Dynasty legacies (1)
The Secret History+1
Nomadic legacy · Members of the dynasty
mpo_nomad_legacy_3· game/common/dynasty_perks/07_mpo_dynasty_perks.txt
What lowers Size of Men-at-Arms Regiments (9)
Cultural traditions (1)

Characters of this culture
tradition_only_the_strong· game/common/culture/traditions/00_combat_traditions.txt
Governments (8)
Monastic Order-100
Rulers with this government
monastic_holy_order_government· game/common/governments/00_government_types.txtEcclesiastical-3
Rulers with this government
ecclesiastical_government· game/common/governments/02_theocratic_government_types.txtAdministrative-2
Rulers with this government
administrative_government· game/common/governments/00_government_types.txtAdventurer-2
Rulers with this government
landless_adventurer_government· game/common/governments/00_government_types.txtCelestial-2
Rulers with this government
celestial_government· game/common/governments/00_government_types.txtMeritocratic Khanate-2
Rulers with this government
steppe_admin_government· game/common/governments/00_government_types.txtMeritocratic-2
Rulers with this government
meritocratic_government· game/common/governments/00_government_types.txtRitsuryō-2
Rulers with this government
japan_administrative_government· game/common/governments/01_japan_government_types.txt
Source: game/common/buildings/00_duchy_capital_buildings.txt, game/common/culture/innovations/00_early_medieval_innovations.txt, game/common/culture/innovations/00_high_medieval_innovations.txt, game/common/culture/innovations/00_late_medieval_innovations.txt, game/common/culture/innovations/00_tribal_innovations.txt, game/common/culture/traditions/00_combat_traditions.txt, game/common/culture/traditions/00_societal_traditions.txt, game/common/dynasty_perks/07_mpo_dynasty_perks.txt, game/common/governments/00_government_types.txt, game/common/governments/01_japan_government_types.txt, game/common/governments/02_theocratic_government_types.txt, game/common/traits/00_traits.txt and the English localisation, Crusader Kings III 1.20.0.3. Building chains are shown once, at their strongest level, with the range over their levels. Effects that come only from events or scale with a script value are not listed.