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