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