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