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