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