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