Last updated: 5 September 2026

BG3 Missable Content Checklist — Interactive Per-Act Tracker

Baldur's Gate 3 is packed with companions, quests, and unique items that quietly disappear if you advance the story without triggering them. This interactive checklist covers every confirmed missable per act — toggle a tab, check items off as you go, and your progress is saved automatically in your browser. Items are drawn from the Baldur's Gate 3 wiki and extensively cross-checked community guides; BG3 also carries the alternate name Baldur's Gate III.

01Interactive Missable Content Checklist

02Act 1 — What You Can Miss and Why

Act 1 is the largest and most open act, but it has a hard stop: the moment you cross the bridge into the Shadow-Cursed Lands for Act 2, you cannot return to the Wilderness. Every companion, quest, and item on the Act 1 tab must be resolved before that transition.

Companions: Wyll is easiest to miss — he stands inside the Emerald Grove near the training dummies. Karlach is north-east on the Risen Road; letting her paladin hunters kill her or raiding the Grove before talking to her locks her out. Withers is not a combat companion but unlocks free respec from camp, which matters enormously for optimising builds.

Unique events: Auntie Ethel's Hair is the single most potent permanent upgrade in Act 1 — you must reduce her HP below 20% in battle, at which point she offers to bargain for her life. You then need a DC 20 Deception or Intimidation check (Fighters and Barbarians get a DC 15 Intimidation check with Advantage instead) to take the hair and free Mayrina in the same deal. Skipping the fight, or failing the check, costs you a permanent +1 to any ability score — and Paladins who accept the bargain break their Oath. Playing a musical duet with Alfira at camp is a missable scene — she is absent if you raid the Grove or fail to save the Tieflings — so trigger it before crossing into Act 2.

Volo chain: Rescue Volo from the Goblin Camp (he's caged in the Defiled Temple) before completing 'Save the Refugees.' He moves to your camp and later performs crude eye surgery, giving you Volo's Ersatz Eye — a permanent See Invisibility effect that works all game (looting the eye off his corpse instead of letting him operate gives you a useless bauble with no effect).

Items: The Everburn Blade is only obtainable in the Nautiloid prologue by using Command: Drop on Commander Zhalk (his save isn't guaranteed to fail, so this isn't 100% reliable) or by killing him outright and looting his body. Once the prologue ends, it is gone forever. Phalar Aluve requires a DC 15 Strength check, or a DC 15 Religion check, to pull it from the rock in the Underdark — an easy miss if you rush past it.

03Act 2 — The Shadow-Cursed Lands

Act 2 is shorter but more tightly scripted around Last Light Inn and Moonrise Towers. Several companions and major quest rewards expire if you advance the Moonrise Towers storyline too quickly.

Last Light Inn pivots: Defending Isobel when Marcus attacks the inn is the single most consequential event in Act 2 — if Isobel dies or is taken, the Inn falls, the surrounding area loses its protection, and Jaheira becomes hostile or is killed. She cannot join your party without surviving that fight. Rolan also rushes out to face shadows near the Inn shortly after this — help him immediately or he dies and his siblings' rescue quest in Moonrise Towers loses its conclusion.

Minthara: Only available if she was knocked unconscious (not killed) during the Goblin Camp fight or the Grove defense in Act 1. She's held and tortured in the Moonrise Towers Prison in Act 2 — rescue her before assaulting the rooftop.

Gauntlet of Shar: Shadowheart's choice at the Nightsong at the end of the Gauntlet defines her entire Act 3 arc and ending. The Dark Justiciar armour set inside the Shadowfell is only obtainable during this quest — it cannot be bought or looted elsewhere.

Lift the Shadow Curse: Halsin enters the Shadowfell to retrieve Thaniel as a prerequisite to fully lifting the curse. This quest must be completed before you leave for Act 3. If you advance to the Moonrise Towers rooftop without finishing it, Halsin doesn't lock you out of a questline so much as lock himself out of your party — he stays behind in the Shadow-Cursed Lands to keep studying the curse, meaning you permanently miss him as a companion.

04Act 3 — Baldur's Gate City

Act 3 has the most missables because the city contains two hard deadlines tied to boss kills — killing Gortash or Orin locks out several quests and NPCs permanently.

Stop the Presses: The most time-sensitive quest in Act 3. After speaking with the editor-in-chief at Baldur's Mouth Gazette about the smear campaign, you have one long rest to complete the quest. If you kill Gortash first, the quest disappears entirely, meaning you permanently miss key story information and the associated items.

Iron Throne order: The Steel Watch Foundry and the Iron Throne Prison must be done in the right order. The Iron Throne is an underwater facility only reachable by submersible, and that submersible becomes unavailable once the Steel Watch Foundry is destroyed — so destroying the Foundry first permanently locks you out of the Iron Throne, meaning the Gondian prisoners and Duke Ravengard can no longer be rescued. Always visit the Iron Throne and rescue its prisoners first, then destroy the Foundry.

Minsc: Only recruitable if Jaheira survived Act 2 and is in your active party when you encounter him in the Counting House sewers. You must knock him unconscious on the final blow rather than kill him outright — killing him makes Jaheira leave permanently. If Jaheira died in Act 2 or isn't with you, this entire questline is closed.

Companion personal quests: Astarion's Cazador questline and Shadowheart's House of Grief quest (finding her parents) must both be completed before the final assault on the Netherbrain. After you commit to the endgame, unfinished companion quests are permanently abandoned.

Legendary items: Several best-in-slot weapons are easy to miss — Markoheshkir is in the lower level of Ramazith's Tower (not the upper floor where the fight happens), Nyrulna requires winning the jackpot on the Djinni Ring at the Circus of the Last Days, and Balduran's Giantslayer requires completing the Wyrmway dragon trials beneath Wyrm's Rock.