Overview
Merely a quick overview of all the achievements in The Witcher 2: Assassins of Kings Enhanced Edition cut up in chapters and paths.May contain spoilers if you’re new to this game and its story
Prologue
Eagle Eye
Hit count Etchverry with the ballista
The Fugitive
Awarded for finishing the prologue phase of the game
Chapter 1
Man Of The Shadows
Awarded for sneaking through Loredo’s garden undetected and finding the Kayran Trap component
Librarian
Awarded for finding all 4 pages of the asylum’s history
Great Potion!
Awarded for creating the Ostmurk potion
Artful Dodger
Awarded for cutting off Kayran’s tentacle using the Kayran trap
Oh My God! You Killed The Kayran! You Bastards!
Awarded for killing the Kayran.
Backbone
Awarded for crafting a suit of armor from the elements of Kayran’s carapace
To Aedirn!
Awarded for completing chapter 1
Friend Of The Trolls
Awarded for sparing the lives of all trolls and helping them (will be completed in Chapter 2)
Trollslayer
Awarded for killing all the trolls in the game (will be completed in Chapter 2)
Summer Solstice
Awarded for activating the shrine
Chapter 2
Fat Man
Awarded for killing the Draug
Alea Iacta Est
Awarded for completing chapter 2
Vernon Roche’s path:
Heartbreaker
Awarded for seducing Ves
Tourist
Awarded for touring the camp with Zyvik
Gladiator
Awarded for defeating all the opponents in the Kaedweni arena
Necromancer
Awarded for reliving all of Aucke’s memories in Dethmold’s vision
Reasons Of State
Awarded for stopping Roche from killing Henselt
Iorveth’s path:
Black Ops
Awarded for succesfully sneaking through the lower camp without raising the alarm
Chapter 3
Pest Control
Awarded for finishing all nest destruction quests
Witch Hunter
Awarded for leaving Sile to die in the unstable portal
Sensitive Guy
Awarded for saving Sile from the unstable portal
Dragon Heart
Awarded for saving or sparing the Dragon/Saskia
Being Witcher George
Awarded for killing the Dragon/Saskia
Once Ain’t Enough
Awarded for completing chapter 3
Winter Solstice
Awarded for activating the shrine
Vernon Roche’s path:
Kingmaker
Awarded for helping Roche rescue Anais from the Kaedweni camp
Iorveth’s path:
Spellbreaker
Awarded for helping Iorveth finding the dagger required to free Saskia from the spellbind.
Epilogue
Avenger
Awarded for killing Letho
Old Friends
Awarded for sparing Letho
To Be Continued…
Awarded for finishing the game in any difficulty level
Madman
Awarded for finishing the game in Insane difficulty level
General Achievements
Craftsman
Awarded for hiring a craftman to create an item
Apprentice
Awarded for creating five potions or oils with Alchemy skills
Taster
Awarded for drinking a potion
Mutant!
Awarded for using mutagens to enhance abilities five times
The Butcher Of Blaviken
Awarded for killing 500 foes
Ricochet
Awarded for killing a foe by deflecting his own arrow to kill him with the ricochet skill
Threesome
Awarded for killing three foes with the group finisher skill
Torn Asunder!
Awarded for killing more than one opponent using a single exploding bomb
Focus
Awarded for performing three successfull Ripostes in a row
Perfectionist
Awarded for killing ten foes in a row without losing any vitality
Gambler
Awarded for winning a wrestling match, a dice poker game and a fist fight
Poker!
Awarded for rolling five of a kind at dice poker
Miser
Awarded for acquiring 10.000 Orens
Intimidator
Awarded for intimidating someone
Journeyman
Awarded for reaching level 10
Guru
Awarded for reaching level 35
Swordmaster
Awarded for acquiring the Combat Acument ability
Master Alchemist
Awarded for acquiring the Mutant ability
Master Of Magic
Awarded for acquiring the Sense Of Magic ability
Source
Credit for the information provided goes to the people that have been active in this forum thread.