Chaos is a Ladder

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).

custom_description = {
	text = chaos_is_a_ladder_achievement_trigger
	government_has_mechanic = administrative
	house ?= {
		is_dominant_family = yes
	}
}

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