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