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