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.
Complete the game in Tactician mode.
Claim your Throne of Blood: take control of the Netherbrain for Bhaal and break the world.
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.
Become Bhaal's ultimate weapon - become his Slayer.
Kill the Adamantine Golem without using the Forge Hammer.
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.
Make the ultimate sacrifice: become a mindflayer to defeat the Netherbrain.
Save every tiefling refugee you can throughout the game in a single playthrough.
Kill the Red Dragon in the Upper City.
Consume a parasite and unlocked a new power - is it meant to wriggle the whole way down?
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.
Multiclass into every class in one playthrough without asking Withers to change your character.
Earn a hundred gold from playing sweet, sweet music in a single playthrough.
Recruit a hireling. You can befriend them or use them as cannon-fodder - we won't judge.
Defeat Gortash in Wyrm's Rock without activating any traps.
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.
Romance the Emperor.
Use one enemy as an improvised weapon against another.
Kill a creature with falling damage.
Break Wyll's Pact with Mizora.
Leave Act Two - Baldur's Gate is just over the horizon.
Kill a character with an unarmed strike.
Defeat the Apostle of Myrkul before it consumes any Necromites.
Rescue all the prisoners from the depths of Moonrise Towers in one playthrough.
Break out of prison after being arrested - aren't you daring?
Pet Scratch and the Owlbear cub at the same time - the greatest joy an adventurer could ask for.
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.
Defeat the Toll Collector without her using gold against you - excellent budgeting.
Leave Act One - for somewhere altogether darker.
Find and summon the quasit Shovel. Or is her name... Fork? Maybe Basket?
Stablise Gale's Netherse orb.
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.
Long Rest using only alcohol - a time-honoured dwarfish tradition.
Read 100 different books in a single playthrough. Adventuring isn't just daring quests, you know.
Perform five attacks in one turn. Your enemies won't know what hit them (literally).
Play fetch with Scratch - the best boy in the Realms.
Take four full long rests in a single playthrough - adventuring's tiring work.
Create three unique alchemical solutions in a single playthrough - bottoms up!
Complete ten background goals in a single playthrough - you are one with your character.
Kill the Spider Matriarch before her eggs hatch - why do they have so many legs?
Let Astarion bite you - ouch.
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.
Defeat Commander Zhalk in the Nautiloid.