Here is the full list of all 52 The Witcher 2: Assassins of Kings Enhanced Edition achievements.
Finish the game by killing Letho.
Spare or save Saskia.
Leave Síle to die in the unstable portal.
Finish the game at any difficulty level.
Finish the game by sparing Letho.
Reach the Epilogue of the game.
Kill the dragon.
Save Síle from dying in the unstable portal.
Achieve character level 35.
Bow to Death at a Winter Shrine.
Complete Chapter 2.
Kill the draug.
Sneak through the lower camp without raising the alarm.
Kill 500 foes.
Spare all trolls in the game.
Enhance abilities using mutagens at least five times.
Collect 10000 orens.
Bow before the Sun at a Summer Shrine.
Acquire the Mutant ability.
Acquire the Sense of Magic ability.
Acquire the Combat Acumen ability.
Kill a foe by deflecting his own arrow at him.
Complete Chapter 1.
Craft a suit of armor from elements of the kayran's carapace.
Achieve character level 10.
Kill the kayran.
Cut off a tentacle using the kayran trap.
Brew the ostmurk potion.
Intimidate someone.
Use alchemy to brew five potions or oils.
Find all additional information about the insane asylum's history.
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.
Hire a craftsman to create an item.
Finish the Prologue.
Kill 10 foes in a row without losing any Vitality.
Hit Count Etcheverry using the ballista.
Drink one potion.
Finish the game while playing at the Insane difficulty level.
Kill more than one opponent using a single exploding bomb.
Perform three successful ripostes in a row.
Kill three foes at once by performing a group finisher.
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.
Help Roche rescue Anais from the Kaedweni camp.
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.
Finish all quests involing the destruction of monster nests.
Roll five-of-a-kind at dice poker.