Legends of the Dead achievement

Upward Mobility

Successfully use the Claim Title Interaction on your Liege while having a higher Legitimacy Level than them.

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 = ce1_upward_mobility_achievement_trigger
	exists = global_var:ce1_upward_mobility_achievement_unlocked
}

As written in game/common/achievements/ce1_achievements.txt.

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

Source: game/common/achievements/ce1_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.