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