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