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