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