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