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