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