Here is the full list of all 52 The Witcher 2: Assassins of Kings Enhanced Edition achievements.
Help Iorveth find the dagger needed to free Saskia from the spell that holds her.
Sneak through the lower camp without raising the alarm.
Kill all the trolls in the game.
Finish the game by killing Letho.
Leave Síle to die in the unstable portal.
Finish the game at any difficulty level.
Finish the game by sparing Letho.
Spare or save Saskia.
Kill the dragon.
Achieve character level 35.
Reach the Epilogue of the game.
Save Síle from dying in the unstable portal.
Help Roche rescue Anais from the Kaedweni camp.
Finish all quests involing the destruction of monster nests.
Bow to Death at a Winter Shrine.
Complete Chapter 2.
Stop Roche from killing Henselt.
Spare all trolls in the game.
Kill the draug.
Relive all of Auckes's memories in Dethmold's vision.
Kill 500 foes.
Collect 10000 orens.
Seduce Ves.
Defeat all opponents in the Kaedweni arena.
Tour the camp with Zyvik.
Complete Chapter 1.
Bow before the Sun at a Summer Shrine.
Craft a suit of armor from elements of the kayran's carapace.
Achieve character level 10.
Kill the kayran.
Cut off a tentacle using the kayran trap.
Enhance abilities using mutagens at least five times.
Kill three foes at once by performing a group finisher.
Find all additional information about the insane asylum's history.
Brew the ostmurk potion.
Acquire the Combat Acumen ability.
Acquire the Sense of Magic ability.
Successfully sneak through Loredo's garden and find the component of the kayran trap.
Roll five-of-a-kind at dice poker.
Win an arm wrestling match, a dice poker game and a fist fight.
Kill more than one opponent using a single exploding bomb.
Acquire the Mutant ability.
Perform three successful ripostes in a row.
Hire a craftsman to create an item.
Finish the Prologue.
Drink one potion.
Use alchemy to brew five potions or oils.
Intimidate someone.
Kill a foe by deflecting his own arrow at him.
Kill 10 foes in a row without losing any Vitality.
Hit Count Etcheverry using the ballista.
Finish the game while playing at the Insane difficulty level.