Nightfall area unlocking

Istan

 * Rally the Recruits (Tutorial) or Take the Shortcut (Skip Tutorial)
 * Into Chahbek Village (unlocks Chahbek Village (outpost) and Chahbek Village (mission), recruits Koss)
 * Quiz the Recruits
 * Chahbek Village (mission) (unlocks Kamadan, Jewel of Istan)
 * Primary Training
 * Honing your Skills
 * Secondary Training
 * Choose Your Secondary Profession (Nightfall)
 * Leaving a Legacy (recruits Dunkoro)
 * The Honorable General
 * Signs and Portents (unlocks Jokanur Diggings (mission), recruits Melonni)
 * Jokanur Diggings (mission)
 * Isle of the Dead (unlocks Beknur Harbor)
 * Bad Tide Rising (also unlocks Student Jin and Student Sousuke)
 * Special Delivery
 * Big News, Small Package (recruits Tahlkora)
 * Following the Trail (unlocks Blacktide Den (outpost) and Blacktide Den (mission))
 * Blacktide Den (mission)
 * The Iron Truth
 * Trial by Fire
 * War Preparations (Ghost Reconnaissance), War Preparations (Recruit Training), War Preparations (Wind and Water)
 * The Time is Nigh (unlocks Consulate Docks (outpost) and Consulate Docks (mission) after release)
 * Consulate Docks (mission) (unlocks Yohlon Haven)

Kourna

 * Hunted! (unlocks Sunspear Sanctuary)
 * The Great Escape (rescues Koss)
 * And a Hero Shall Lead Them
 * Venta Cemetery (mission)
 * The Council is Called
 * To Vabbi!
 * Centaur Blackmail
 * Kodonur Crossroads (mission)
 * Mysterious Message
 * either ...
 * Secrets in the Shadow
 * To Kill a Demon
 * Rilohn Refuge (mission)
 * or ...
 * For a Price
 * No Me, No Kormir
 * Pogahn Passage (mission)
 * Moddok Crevice (mission)
 * Rally The Princes (unlocks access to Garden of Seborhin)

Vabbi
SPLIT: OR
 * Tihark Orchard (mission)
 * All's Well That Ends Well
 * Warning Kehanni
 * Greed and Regret (Margrid the Sly)
 * Dasha Vestibule (mission)
 * Calling the Order (Master of Whispers)
 * Dzagonur Bastion (mission)


 * Pledge of the Merchant Princes
 * Grand Court of Sebelkeh (mission)

SPLIT: OR
 * Attack at the Kodash (Koss and Melonni)
 * Heart or Mind: Garden in Danger (Koss)
 * Jennur's Horde (mission)
 * Heart or Mind: Ronjok in Danger (Melonni)
 * Nundu Bay (mission)


 * Crossing the Desolation (Zhed Shadowhoof)
 * Gate of Desolation (mission)


 * A Deal's a Deal
 * Horde of Darkness
 * Ruins of Morah (mission)

Realm of Torment

 * Uncharted Territory (Dunkoro)
 * Gate of Pain (mission)


 * Kormir's Crusade
 * All Alone in the Darkness
 * Gate of Madness (mission)
 * Abaddon's Gate (mission)

Domain of Anguish

 * Gate of Anguish (mission)