Unofficial fan reference · game files of Crusader Kings III 1.20.0.3 “Crozier”
CK3 Database
Cut off the Head... and the Body will Follow achievement icon

All Under Heaven achievement

Cut off the Head... and the Body will Follow

Successfully use the Eradicate Casus Belli against a House that you have the Feuding House Relation with

Conditions as the game checks them

Possible decides whether the achievement can still be earned in a run; happened is the check that unlocks it (common/achievements/_achievements.info).

Unlocks when (happened) (4 lines of game script)
custom_description = {
	text = ep4_07_cut_off_the_head_and_the_body_will_follow_achievement_trigger
	exists = global_var:finished_ep4_07_cut_off_the_head_and_the_body_will_follow_achievement
}

As written in game/common/achievements/ep4_achievements.txt.

The file gives no “possible” condition for this one.

Source: game/common/achievements/ep4_achievements.txt, game/common/achievement_groups.txt and the English localisation, Crusader Kings III 1.20.0.3. Unlock share: Steam Web API, 2026-10-02.