The Northern Lords achievement

First of the Crusader Kings

Starting as a North Germanic of any kind, participate immediately as an attacker in the first Catholic crusade

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) (5 lines of game script)

custom_description = {
	text = first_of_the_crusader_kings_achievement_trigger
	has_character_flag = first_of_the_crusader_kings_achievement_flag
	fp1_achievement_culture_norse_trigger = yes
}

As written in game/common/achievements/fp1_achievements.txt.

Still possible while (possible) (4 lines of game script)

exists = global_var:started_first_of_the_crusader_kings_achievement
NOT = {
	exists = global_var:had_first_catholic_crusade
}

As written in game/common/achievements/fp1_achievements.txt.

Source: game/common/achievements/fp1_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.