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