Here is the full list of all 52 The Witcher 2: Assassins of Kings Enhanced Edition achievements.
Kill all the trolls in the game.
Roll five-of-a-kind at dice poker.
Perform three successful ripostes in a row.
Tour the camp with Zyvik.
Cut off a tentacle using the kayran trap.
Acquire the Mutant ability.
Collect 10000 orens.
Hit Count Etcheverry using the ballista.
Spare or save Saskia.
Achieve character level 35.
Help Iorveth find the dagger needed to free Saskia from the spell that holds her.
Enhance abilities using mutagens at least five times.
Bow before the Sun at a Summer Shrine.
Successfully sneak through Loredo's garden and find the component of the kayran trap.
Finish the game at any difficulty level.
Finish the game by sparing Letho.
Reach the Epilogue of the game.
Kill the dragon.
Save Síle from dying in the unstable portal.
Finish all quests involing the destruction of monster nests.
Help Roche rescue Anais from the Kaedweni camp.
Acquire the Sense of Magic ability.
Complete Chapter 2.
Spare all trolls in the game.
Kill three foes at once by performing a group finisher.
Kill the draug.
Kill 500 foes.
Acquire the Combat Acumen ability.
Relive all of Auckes's memories in Dethmold's vision.
Win an arm wrestling match, a dice poker game and a fist fight.
Seduce Ves.
Defeat all opponents in the Kaedweni arena.
Complete Chapter 1.
Kill more than one opponent using a single exploding bomb.
Craft a suit of armor from elements of the kayran's carapace.
Hire a craftsman to create an item.
Achieve character level 10.
Kill the kayran.
Intimidate someone.
Find all additional information about the insane asylum's history.
Brew the ostmurk potion.
Use alchemy to brew five potions or oils.
Kill a foe by deflecting his own arrow at him.
Drink one potion.
Finish the Prologue.
Kill 10 foes in a row without losing any Vitality.
Finish the game while playing at the Insane difficulty level.
Stop Roche from killing Henselt.
Sneak through the lower camp without raising the alarm.
Leave Síle to die in the unstable portal.
Finish the game by killing Letho.
Bow to Death at a Winter Shrine.