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