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