Baldur’s Gate 3 Hidden Achievements: A 2026 Guide for Completionists

In 2026, Baldur’s Gate 3 still has a way of making completionists feel like they are trying to solve a Rubik’s cube blindfolded while a bard narrates their failures. The game’s hidden achievements — the ones tucked behind question marks — are not just optional bragging rights; they are tiny story traps, missable moments, and sometimes full-blown spoilers. A player who wants the full list should expect 100+ hours and more than one playthrough, because some achievements demand choices that directly contradict others. This guide walks through the hidden achievements by act, flags the missable ones, and offers practical tips without pretending the journey is short. Beware: story spoilers ahead.

Act 1: The Point of No Return Is Closer Than It Looks

Act 1 hides several achievements that vanish once the party leaves for the Shadow-Cursed Lands. Two of them are especially easy to lose: Taking Blood (steal the Blood of Lathander from Rosymorn Monastery) and the Adamantine Forge pair — Forged in Blood and Fire (craft an item in the forge) and A Grym Fate (kill the Adamantine Golem without using the forge hammer). The golem fight is a notorious difficulty spike. Players should bring their tankiest companions and at least one reliable ranged damage dealer; the fight rewards patience and positioning more than raw damage. Skipping these means another campaign, full stop.

A useful mental model: Act 1’s hidden achievements are like a train that leaves the station whether or not the player has bought a ticket. The Adamantine Forge and Rosymorn Monastery are the two carriages most often left behind. Completionists should clear them before taking the mountain pass or the Underdark elevator.

Act 2: Shadow-Cursed Missables and a Goblin’s Long Journey

Act 2 has fewer hidden achievements, but its missables are sharper. To Bloom in Darkest Night requires giving Shadowheart a Night Orchid, and those flowers only grow in the Shadowlands. Under Lock and Key asks the party to rescue every prisoner from Moonrise Towers in a single playthrough. No Free Lunches demands defeating the Apostle of Myrkul before he consumes any necromites — a fight that becomes much cleaner when players burst down the adds early.

The sneakiest is She Cannot Be Caged!, which requires rescuing Sazza from Emerald Grove, the Goblin Camp, and Moonrise Towers in one playthrough. The critical detail is timing: the party must visit Moonrise Towers and free Sazza before saving the Nightsong. Once that story beat flips, the opportunity is gone. This achievement is less a battle and more a chain of small mercies — a reminder that Baldur’s Gate 3 often hides its rarest trophies inside acts of compassion.

The City Awaits simply marks leaving Act 2, so it arrives naturally. The others do not.

Act 3: Ending Achievements, Romance, and the Dark Urge

Act 3 is where the achievement list becomes a choose-your-own-ending machine. A single playthrough can only claim one or two of the major finale achievements, because they represent mutually exclusive outcomes. Hero of the Forgotten Realms requires killing the Netherbrain and destroying the Absolute tadpoles. Absolute Power Corrupts requires taking control of the Netherbrain. Ceremorphosis requires becoming a mind flayer to defeat the Netherbrain. Sins of the Father and Embrace Your Urge are tied to Dark Urge choices, which means a second campaign is effectively mandatory for full completion.

Other Act 3 hidden achievements are more straightforward but still easy to overlook:

• First Blood — kill Orin while her cultists perform the ritual.

• Interfectorem Draconis — kill the red dragon in the Upper City.

• Murder in Baldur’s Gate — become an Unholy Assassin of Bhaal.

• Mind Blown — romance the Emperor.

• Loophole — break Wyll’s pact with Mizora.

• Hot Date — go on a date with Karlach.

Then there are the cross-act achievements. Expand Your Mind is simple: consume a parasite. You Have Two Hands for a Reason is delightful: pet Scratch and the Owlbear Cub at the same time. All’s Well That Ends Well arrives with the credits. The platinum trophy, Pride of Baldur’s Gate, is PlayStation-only and requires every other trophy.

The real monster is Leave No One Behind, which asks players to save every Tiefling refugee in one playthrough. That means helping them escape Emerald Grove safely, finding those who wander off in the Shadowlands, and handling the remaining refugees in Act 3. Keeping every Tiefling alive is like carrying a tray of full wine glasses through a crowded tavern while someone keeps moving the tables — one bad roll, one ignored side quest, and the whole tray goes down. It is the achievement that most often turns a relaxed playthrough into a spreadsheet.

Final Tips for 2026 Completionists

• Keep multiple saves, especially before leaving Act 1 and before the Nightsong.

• Do not treat question marks as optional flavor; many are one-time story windows.

• Plan at least two runs: one for a heroic ending, one for Dark Urge or Absolute Power.

• Check companion approvals before romance achievements; some are gated by earlier choices.

• Expect the Adamantine Golem to be a wall; bring blunt force, ranged damage, and patience.

Baldur’s Gate 3’s hidden achievements are not a checklist so much as a Rube Goldberg machine of narrative choices — one missing lever and the whole contraption sulks in the corner. In 2026, with the game still drawing new players and veteran completionists alike, the safest advice remains unchanged: save often, read the room, and accept that one campaign cannot do everything.

This content draws upon HowLongToBeat, a widely referenced source for estimating campaign, side-content, and completionist run times. For a game like Baldur’s Gate 3, where hidden achievements often require multiple branching decisions and extensive cleanup across all three acts, completion-length tracking helps frame why a true 100% run is better approached as a multi-playthrough project than a single perfectly optimized save.