Here is the full list of all 52 The Witcher 2: Assassins of Kings Enhanced Edition achievements.
Enhance abilities using mutagens at least five times.
Relive all of Auckes's memories in Dethmold's vision.
Acquire the Sense of Magic ability.
Seduce Ves.
Defeat all opponents in the Kaedweni arena.
Tour the camp with Zyvik.
Craft a suit of armor from elements of the kayran's carapace.
Use alchemy to brew five potions or oils.
Find all additional information about the insane asylum's history.
Collect 10000 orens.
Win an arm wrestling match, a dice poker game and a fist fight.
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.
Complete Chapter 2.
Kill 500 foes.
Kill three foes at once by performing a group finisher.
Kill the draug.
Acquire the Combat Acumen ability.
Sneak through the lower camp without raising the alarm.
Spare all trolls in the game.
Complete Chapter 1.
Achieve character level 10.
Kill the kayran.
Kill a foe by deflecting his own arrow at him.
Brew the ostmurk potion.
Successfully sneak through Loredo's garden and find the component of the kayran trap.
Hire a craftsman to create an item.
Intimidate someone.
Bow before the Sun at a Summer Shrine.
Finish the Prologue.
Kill 10 foes in a row without losing any Vitality.
Perform three successful ripostes in a row.
Drink one potion.
Finish the game while playing at the Insane difficulty level.
Kill the dragon.
Cut off a tentacle using the kayran trap.
Achieve character level 35.
Acquire the Mutant ability.
Kill more than one opponent using a single exploding bomb.
Stop Roche from killing Henselt.
Kill all the trolls in the game.
Help Roche rescue Anais from the Kaedweni camp.
Help Iorveth find the dagger needed to free Saskia from the spell that holds her.
Save Síle from dying in the unstable portal.
Finish the game by killing Letho.
Finish all quests involing the destruction of monster nests.
Roll five-of-a-kind at dice poker.
Bow to Death at a Winter Shrine.