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