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