Here is the full list of all 52 The Witcher 2: Assassins of Kings Enhanced Edition achievements.
Roll five-of-a-kind at dice poker.
Finish the game while playing at the Insane difficulty level.
Finish the game by killing Letho.
Spare or save Saskia.
Leave Síle to die in the unstable portal.
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.
Achieve character level 35.
Bow before the Sun at a Summer Shrine.
Finish the game at any difficulty level.
Finish the game by sparing Letho.
Kill the dragon.
Reach the Epilogue of the game.
Save Síle from dying in the unstable portal.
Help Roche rescue Anais from the Kaedweni camp.
Collect 10000 orens.
Finish all quests involing the destruction of monster nests.
Complete Chapter 2.
Stop Roche from killing Henselt.
Kill three foes at once by performing a group finisher.
Acquire the Sense of Magic ability.
Acquire the Mutant ability.
Spare all trolls in the game.
Kill the draug.
Tour the camp with Zyvik.
Relive all of Auckes's memories in Dethmold's vision.
Kill 500 foes.
Seduce Ves.
Acquire the Combat Acumen ability.
Enhance abilities using mutagens at least five times.
Defeat all opponents in the Kaedweni arena.
Complete Chapter 1.
Perform three successful ripostes in a row.
Craft a suit of armor from elements of the kayran's carapace.
Cut off a tentacle using the kayran trap.
Kill the kayran.
Successfully sneak through Loredo's garden and find the component of the kayran trap.
Achieve character level 10.
Brew the ostmurk potion.
Kill a foe by deflecting his own arrow at him.
Find all additional information about the insane asylum's history.
Hire a craftsman to create an item.
Use alchemy to brew five potions or oils.
Win an arm wrestling match, a dice poker game and a fist fight.
Intimidate someone.
Finish the Prologue.
Kill 10 foes in a row without losing any Vitality.
Hit Count Etcheverry using the ballista.
Kill more than one opponent using a single exploding bomb.
Drink one potion.