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