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