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