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