Here is the full list of all 54 Baldur's Gate 3 achievements. It takes around 200 hours to unlock all of the achievements on Windows.
Complete the game in Honour mode.
Save every tiefling refugee you can throughout the game in a single playthrough.
Earn a hundred gold from playing sweet, sweet music in a single playthrough.
Rescue Sazza from the Emerald Grove, Goblin Camp, and Moonrise Towers in one playthrough.
Reign with terror: take control of the Netherbrain and bend the world to your will.
Claim your Throne of Blood: take control of the Netherbrain for Bhaal and break the world.
Complete the game in Tactician mode.
Find and summon the quasit Shovel. Or is her name... Fork? Maybe Basket?
Finish the game (with a heartfelt 'thank you!'' from Larian Studios).
Save the day: kill the Netherbrain and destroy the Absolute tadpoles.
Make the ultimate sacrifice: become a mindflayer to defeat the Netherbrain.
Kill the Red Dragon in the Upper City.
Kill Orin while her cultists are performing their ritual chant.
Go on a date with Karlach - now that's playing with fire.
In the Wyrmway, wait until the dragon is midflight, then knock it out of the sky - KAPOW.
Rescue all the prisoners from the depths of Moonrise Towers in one playthrough.
Defeat twenty opponents while a party character is drunk in a single playthough - down them.
Pet Scratch and the Owlbear cub at the same time - the greatest joy an adventurer could ask for.
Break Wyll's Pact with Mizora.
Become Bhaal's ultimate weapon - become his Slayer.
Coat the streets of Baldur's Gate in blood - become an Unholy Assassin of Bhaal.
Dig up five buried chests in a single playthrough - treasure!
Read 100 different books in a single playthrough. Adventuring isn't just daring quests, you know.
Romance the Emperor.
Defeat Gortash in Wyrm's Rock without activating any traps.
Leave Act Two - Baldur's Gate is just over the horizon.
Kill the Surgeon before he performs surgery on you in combat.
Defeat the Toll Collector without her using gold against you - excellent budgeting.
Create three unique alchemical solutions in a single playthrough - bottoms up!
Gift Shadowheart a night orchid - her favourite flower. Always knew she was a softie.
Play fetch with Scratch - the best boy in the Realms.
Stablise Gale's Netherse orb.
Let Astarion bite you - ouch.
Defeat the Apostle of Myrkul before it consumes any Necromites.
Kill the Spider Matriarch before her eggs hatch - why do they have so many legs?
Multiclass into every class in one playthrough without asking Withers to change your character.
Recruit a hireling. You can befriend them or use them as cannon-fodder - we won't judge.
Long Rest using only alcohol - a time-honoured dwarfish tradition.
Leave Act One - for somewhere altogether darker.
Ally with Voss against the Githyanki God-Queen. Good luck.
Steal the Blood of Lathander from underneath Rosymorn Monastery.
Consume a parasite and unlocked a new power - is it meant to wriggle the whole way down?
Complete ten background goals in a single playthrough - you are one with your character.
Craft an item in the Adamantine Forge.
Defeat Commander Zhalk in the Nautiloid.
Kill the Adamantine Golem without using the Forge Hammer.
Break out of prison after being arrested - aren't you daring?
Kill a character with an unarmed strike.
Kill a creature with falling damage.
Take four full long rests in a single playthrough - adventuring's tiring work.
Successfully use Detect Thoughts to pry into someone's thoughts.
Use one enemy as an improvised weapon against another.
Perform five attacks in one turn. Your enemies won't know what hit them (literally).
Take control of the Nautiloid and escape the hells.