All Under Heaven achievement

Sword of Japan

Starting as the Chrysanthemum Throne, restore direct imperial rule

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_03_sword_of_japan_achievement_trigger
	exists = global_var:finished_ep4_03_sword_of_japan_achievement
}

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

Still possible while (possible) (1 line of game script)

exists = global_var:started_ep4_03_sword_of_japan_achievement

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

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.