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