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