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.
Collect 10000 orens.
Spare all trolls in the game.
Bow before the Sun at a Summer Shrine.
Roll five-of-a-kind at dice poker.
Finish the game by sparing Letho.
Finish the game at any difficulty level.
Finish the game by killing Letho.
Spare or save Saskia.
Kill the dragon.
Achieve character level 35.
Reach the Epilogue of the game.
Leave Síle to die in the unstable portal.
Save Síle from dying in the unstable portal.
Help Roche rescue Anais from the Kaedweni camp.
Perform three successful ripostes in a row.
Bow to Death at a Winter Shrine.
Finish all quests involing the destruction of monster nests.
Acquire the Sense of Magic ability.
Acquire the Mutant ability.
Use alchemy to brew five potions or oils.
Enhance abilities using mutagens at least five times.
Complete Chapter 2.
Stop Roche from killing Henselt.
Kill all the trolls in the game.
Kill three foes at once by performing a group finisher.
Kill the draug.
Relive all of Auckes's memories in Dethmold's vision.
Kill 500 foes.
Acquire the Combat Acumen ability.
Seduce Ves.
Defeat all opponents in the Kaedweni arena.
Tour the camp with Zyvik.
Complete Chapter 1.
Kill a foe by deflecting his own arrow at him.
Craft a suit of armor from elements of the kayran's carapace.
Kill the kayran.
Cut off a tentacle using the kayran trap.
Achieve character level 10.
Find all additional information about the insane asylum's history.
Hire a craftsman to create an item.
Kill more than one opponent using a single exploding bomb.
Brew the ostmurk potion.
Successfully sneak through Loredo's garden and find the component of the kayran trap.
Intimidate someone.
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.