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