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