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