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