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