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.
Break Wyll's Pact with Mizora.
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.
Kill the Surgeon before he performs surgery on you in combat.
Kill the Adamantine Golem without using the Forge Hammer.
Defeat twenty opponents while a party character is drunk in a single playthough - down them.
Multiclass into every class in one playthrough without asking Withers to change your character.
Use one enemy as an improvised weapon against another.
Complete the game in Honour mode.
Kill the Spider Matriarch before her eggs hatch - why do they have so many legs?
Claim your Throne of Blood: take control of the Netherbrain for Bhaal and break the world.
Complete the game in Tactician mode.
Coat the streets of Baldur's Gate in blood - become an Unholy Assassin of Bhaal.
Become Bhaal's ultimate weapon - become his Slayer.
Defeat the Apostle of Myrkul before it consumes any Necromites.
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.
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.
Recruit a hireling. You can befriend them or use them as cannon-fodder - we won't judge.
Reign with terror: take control of the Netherbrain and bend the world to your will.
Kill the Red Dragon in the Upper City.
Ally with Voss against the Githyanki God-Queen. Good luck.
Defeat the Toll Collector without her using gold against you - excellent budgeting.
Play fetch with Scratch - the best boy in the Realms.
Craft an item in the Adamantine Forge.
Long Rest using only alcohol - a time-honoured dwarfish tradition.
Finish the game (with a heartfelt 'thank you!'' from Larian Studios).
Save the day: kill the Netherbrain and destroy the Absolute tadpoles.
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 Commander Zhalk in the Nautiloid.
Let Astarion bite you - ouch.
Stablise Gale's Netherse orb.
Leave Act One - for somewhere altogether darker.
Read 100 different books in a single playthrough. Adventuring isn't just daring quests, you know.
Consume a parasite and unlocked a new power - is it meant to wriggle the whole way down?
Dig up five buried chests in a single playthrough - treasure!
Create three unique alchemical solutions in a single playthrough - bottoms up!
Kill a creature with falling damage.
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.
Successfully use Detect Thoughts to pry into someone's thoughts.
Perform five attacks in one turn. Your enemies won't know what hit them (literally).
Kill a character with an unarmed strike.
Take control of the Nautiloid and escape the hells.
Make the ultimate sacrifice: become a mindflayer to defeat the Netherbrain.
Break out of prison after being arrested - aren't you daring?
Find and summon the quasit Shovel. Or is her name... Fork? Maybe Basket?
Rescue all the prisoners from the depths of Moonrise Towers in one playthrough.
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.
Go on a date with Karlach - now that's playing with fire.