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