Leave No One Behind

Leave No One Behind is an achievement in Baldur's Gate 3 that requires the player to save all the Tiefling Refugees whenever possible. If the conditions are met, this achievement is awarded upon completing the game.

Act One

• The Tiefling refugees in the Emerald Grove must be saved from the goblins, and the Rite of Thorns must not be triggered. See also Save the Refugees
• Once reaching the Emerald Grove, Nadira can be found on top of the hill to the left of the gate. A bugbear assassin is behind her and must be killed immediately after getting close to Nadira's location. Otherwise the bugbear will kill Nadira.
• Convince Rolan to stay with the rest of the refugees.
• Kagha must be dissuaded from killing Arabella in the Inner Sanctum of the grove.
• If you find Arka confronting the goblin Sazza in the Makeshift Prison, then you need to talk her out of seeking revenge or she would show up dead later near the Goblin Camp.
• If you have triggered the Investigate the Beach quest in your quest log (by going near that Beach area), then Mirkon must be saved (before you long rest too much) and this also must be done before Defeat the Goblins quest is finished.
• For The Dark Urge (origin) specifically: Alfira must be knocked out non-lethally before long resting and replaced by a Dragonborn bard Quil during Dark Urge's personal camp event. Also, Dark Urge must resist killing Pandirna in The Hollow.

Act Two

• If you fight the Strange Ox, make sure Dammon remains alive.
• Don't let any tieflings die during the initial raid on the Last Light Inn
• When the Inn is raided, Mol will be kidnapped to Moonrise Towers and she won't be found until Act 3. See also Find Mol.
• Save Rolan at the southern end of the river from an attack by multiple Shadows
• Rescue all the tieflings from Moonrise Towers before entering the Shadowfell as part of the Find the Nightsong quest, see also Rescue the Tieflings. Saving them is enough, checking on them is not necessary for completing this quest.
• Do not choose to kill the Nightsong.
• Find Arabella in Reithwin Town and complete Find Arabella's Parents
• Rescue Zevlor in the Illithid colony. See also Find Zevlor.

Act Three

• Rolan must not die if the player chooses to battle Lorroakan at Sorcerous Sundries
• Find Mol in the Guildhall.
• Zevlor must survive if summoned during the final battle.