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