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