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