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