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