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