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.
Become Bhaal's ultimate weapon - become his Slayer.
Defeat the Toll Collector without her using gold against you - excellent budgeting.
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.
Romance the Emperor.
Go on a date with Karlach - now that's playing with fire.
Pet Scratch and the Owlbear cub at the same time - the greatest joy an adventurer could ask for.
Kill the Adamantine Golem without using the Forge Hammer.
Kill the Spider Matriarch before her eggs hatch - why do they have so many legs?
Defeat Commander Zhalk in the Nautiloid.
Use one enemy as an improvised weapon against another.
Defeat twenty opponents while a party character is drunk in a single playthough - down them.
Kill a character with an unarmed strike.
Earn a hundred gold from playing sweet, sweet music in a single playthrough.
Multiclass into every class in one playthrough without asking Withers to change your character.
Coat the streets of Baldur's Gate in blood - become an Unholy Assassin of Bhaal.
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.
Break out of prison after being arrested - aren't you daring?
Find and summon the quasit Shovel. Or is her name... Fork? Maybe Basket?
In the Wyrmway, wait until the dragon is midflight, then knock it out of the sky - KAPOW.
Reign with terror: take control of the Netherbrain and bend the world to your will.
Finish the game (with a heartfelt 'thank you!'' from Larian Studios).
Save the day: kill the Netherbrain and destroy the Absolute tadpoles.
Complete the game in Tactician mode.
Kill the Red Dragon in the Upper City.
Kill Orin while her cultists are performing their ritual chant.
Defeat Gortash in Wyrm's Rock without activating any traps.
Break Wyll's Pact with Mizora.
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.
Long Rest using only alcohol - a time-honoured dwarfish tradition.
Kill the Surgeon before he performs surgery on you in combat.
Gift Shadowheart a night orchid - her favourite flower. Always knew she was a softie.
Leave Act One - for somewhere altogether darker.
Stablise Gale's Netherse orb.
Ally with Voss against the Githyanki God-Queen. Good luck.
Consume a parasite and unlocked a new power - is it meant to wriggle the whole way down?
Steal the Blood of Lathander from underneath Rosymorn Monastery.
Kill a creature with falling damage.
Craft an item in the Adamantine Forge.
Play fetch with Scratch - the best boy in the Realms.
Let Astarion bite you - ouch.
Read 100 different books in a single playthrough. Adventuring isn't just daring quests, you know.
Complete ten background goals in a single playthrough - you are one with your character.
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).
Create three unique alchemical solutions in a single playthrough - bottoms up!
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.