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.
Save every tiefling refugee you can throughout the game in a single playthrough.
Reign with terror: take control of the Netherbrain and bend the world to your will.
Earn a hundred gold from playing sweet, sweet music in a single playthrough.
Go on a date with Karlach - now that's playing with fire.
Rescue all the prisoners from the depths of Moonrise Towers in one playthrough.
Use one enemy as an improvised weapon against another.
Kill a creature with falling damage.
Complete the game in Tactician mode.
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).
Claim your Throne of Blood: take control of the Netherbrain for Bhaal and break the world.
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.
Gift Shadowheart a night orchid - her favourite flower. Always knew she was a softie.
Coat the streets of Baldur's Gate in blood - become an Unholy Assassin of Bhaal.
Defeat twenty opponents while a party character is drunk in a single playthough - down them.
Read 100 different books in a single playthrough. Adventuring isn't just daring quests, you know.
Kill a character with an unarmed strike.
In the Wyrmway, wait until the dragon is midflight, then knock it out of the sky - KAPOW.
Become Bhaal's ultimate weapon - become his Slayer.
Long Rest using only alcohol - a time-honoured dwarfish tradition.
Craft an item in the Adamantine Forge.
Kill the Adamantine Golem without using the Forge Hammer.
Pet Scratch and the Owlbear cub at the same time - the greatest joy an adventurer could ask for.
Create three unique alchemical solutions in a single playthrough - bottoms up!
Ally with Voss against the Githyanki God-Queen. Good luck.
Steal the Blood of Lathander from underneath Rosymorn Monastery.
Dig up five buried chests in a single playthrough - treasure!
Let Astarion bite you - ouch.
Play fetch with Scratch - the best boy in the Realms.
Find and summon the quasit Shovel. Or is her name... Fork? Maybe Basket?
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.
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?
Leave Act Two - Baldur's Gate is just over the horizon.
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.
Romance the Emperor.
Perform five attacks in one turn. Your enemies won't know what hit them (literally).
Defeat the Apostle of Myrkul before it consumes any Necromites.
Break Wyll's Pact with Mizora.
Defeat Commander Zhalk in the Nautiloid.
Leave Act One - for somewhere altogether darker.
Successfully use Detect Thoughts to pry into someone's thoughts.
Rescue Sazza from the Emerald Grove, Goblin Camp, and Moonrise Towers in one playthrough.
Kill the Surgeon before he performs surgery on you in combat.
Defeat the Toll Collector without her using gold against you - excellent budgeting.
Stablise Gale's Netherse orb.
Take control of the Nautiloid and escape the hells.