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