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