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