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