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