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