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