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