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.
Save Síle from dying in the unstable portal.
Bow to Death at a Winter Shrine.
Finish all quests involing the destruction of monster nests.
Roll five-of-a-kind at dice poker.
Complete Chapter 2.
Spare all trolls in the game.
Kill the draug.
Relive all of Auckes's memories in Dethmold's vision.
Use alchemy to brew five potions or oils.
Kill 500 foes.
Seduce Ves.
Defeat all opponents in the Kaedweni arena.
Win an arm wrestling match, a dice poker game and a fist fight.
Tour the camp with Zyvik.
Complete Chapter 1.
Successfully sneak through Loredo's garden and find the component of the kayran trap.
Achieve character level 10.
Find all additional information about the insane asylum's history.
Kill the kayran.
Brew the ostmurk potion.
Finish the Prologue.
Hire a craftsman to create an item.
Drink one potion.
Kill 10 foes in a row without losing any Vitality.
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.
Acquire the Combat Acumen ability.
Kill more than one opponent using a single exploding bomb.
Collect 10000 orens.
Enhance abilities using mutagens at least five times.
Perform three successful ripostes in a row.
Kill a foe by deflecting his own arrow at him.
Kill three foes at once by performing a group finisher.
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.
Leave Síle to die in the unstable portal.
Finish the game by killing Letho.
Intimidate someone.
Bow before the Sun at a Summer Shrine.