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.
Earn a hundred gold from playing sweet, sweet music in a single playthrough.
Save every tiefling refugee you can throughout the game in a single playthrough.
Kill the Red Dragon in the Upper City.
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.
Find and summon the quasit Shovel. Or is her name... Fork? Maybe Basket?
Defeat twenty opponents while a party character is drunk in a single playthough - down them.
Multiclass into every class in one playthrough without asking Withers to change your character.
Gift Shadowheart a night orchid - her favourite flower. Always knew she was a softie.
In the Wyrmway, wait until the dragon is midflight, then knock it out of the sky - KAPOW.
Defeat Gortash in Wyrm's Rock without activating any traps.
Kill the Spider Matriarch before her eggs hatch - why do they have so many legs?
Create three unique alchemical solutions in a single playthrough - bottoms up!
Defeat the Apostle of Myrkul before it consumes any Necromites.
Rescue Sazza from the Emerald Grove, Goblin Camp, and Moonrise Towers in one playthrough.
Pet Scratch and the Owlbear cub at the same time - the greatest joy an adventurer could ask for.
Recruit a hireling. You can befriend them or use them as cannon-fodder - we won't judge.
Play fetch with Scratch - the best boy in the Realms.
Claim your Throne of Blood: take control of the Netherbrain for Bhaal and break the world.
Complete the game in Tactician mode.
Become Bhaal's ultimate weapon - become his Slayer.
Kill a character with an unarmed strike.
Long Rest using only alcohol - a time-honoured dwarfish tradition.
Defeat the Toll Collector without her using gold against you - excellent budgeting.
Stablise Gale's Netherse orb.
Craft an item in the Adamantine Forge.
Kill the Adamantine Golem without using the Forge Hammer.
Dig up five buried chests in a single playthrough - treasure!
Steal the Blood of Lathander from underneath Rosymorn Monastery.
Let Astarion bite you - ouch.
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).
Reign with terror: take control of the Netherbrain and bend the world to your will.
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.
Read 100 different books in a single playthrough. Adventuring isn't just daring quests, you know.
Romance the Emperor.
Use one enemy as an improvised weapon against another.
Break Wyll's Pact with Mizora.
Break out of prison after being arrested - aren't you daring?
Leave Act Two - Baldur's Gate is just over the horizon.
Successfully use Detect Thoughts to pry into someone's thoughts.
Kill the Surgeon before he performs surgery on you in combat.
Leave Act One - for somewhere altogether darker.
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?
Kill a creature with falling damage.
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).
Take control of the Nautiloid and escape the hells.
Defeat Commander Zhalk in the Nautiloid.