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