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