Here is the full list of all 52 The Witcher 2: Assassins of Kings Enhanced Edition achievements.
Finish the game at any difficulty level.
Finish the game by killing Letho.
Spare or save Saskia.
Reach the Epilogue of the game.
Save Síle from dying in the unstable portal.
Kill three foes at once by performing a group finisher.
Finish all quests involing the destruction of monster nests.
Acquire the Combat Acumen ability.
Complete Chapter 2.
Spare all trolls in the game.
Kill the draug.
Relive all of Auckes's memories in Dethmold's vision.
Kill 500 foes.
Defeat all opponents in the Kaedweni arena.
Tour the camp with Zyvik.
Acquire the Sense of Magic ability.
Complete Chapter 1.
Kill the kayran.
Achieve character level 10.
Cut off a tentacle using the kayran trap.
Brew the ostmurk potion.
Bow before the Sun at a Summer Shrine.
Perform three successful ripostes in a row.
Win an arm wrestling match, a dice poker game and a fist fight.
Successfully sneak through Loredo's garden and find the component of the kayran trap.
Find all additional information about the insane asylum's history.
Hire a craftsman to create an item.
Use alchemy to brew five potions or oils.
Finish the Prologue.
Kill more than one opponent using a single exploding bomb.
Intimidate someone.
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.
Craft a suit of armor from elements of the kayran's carapace.
Achieve character level 35.
Acquire the Mutant ability.
Collect 10000 orens.
Enhance abilities using mutagens at least five times.
Kill a foe by deflecting his own arrow at him.
Hit Count Etcheverry using the ballista.
Seduce Ves.
Stop Roche from killing Henselt.
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.
Leave Síle to die in the unstable portal.
Finish the game by sparing Letho.
Roll five-of-a-kind at dice poker.
Bow to Death at a Winter Shrine.