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