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