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