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