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