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 killing 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.
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.
Acquire the Mutant ability.
Hit Count Etcheverry using the ballista.
Finish the game at any difficulty level.
Finish the game by sparing Letho.
Kill the dragon.
Reach the Epilogue of the game.
Save Síle from dying in the unstable portal.
Help Roche rescue Anais from the Kaedweni camp.
Finish all quests involing the destruction of monster nests.
Kill a foe by deflecting his own arrow at him.
Complete Chapter 2.
Stop Roche from killing Henselt.
Spare all trolls in the game.
Enhance abilities using mutagens at least five times.
Kill the draug.
Acquire the Sense of Magic ability.
Relive all of Auckes's memories in Dethmold's vision.
Perform three successful ripostes in a row.
Kill 500 foes.
Kill three foes at once by performing a group finisher.
Acquire the Combat Acumen ability.
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.
Kill more than one opponent using a single exploding bomb.
Brew the ostmurk potion.
Find all additional information about the insane asylum's history.
Use alchemy to brew five potions or oils.
Successfully sneak through Loredo's garden and find the component of the kayran trap.
Drink one potion.
Win an arm wrestling match, a dice poker game and a fist fight.
Roll five-of-a-kind at dice poker.
Hire a craftsman to create an item.
Finish the Prologue.
Intimidate someone.
Kill 10 foes in a row without losing any Vitality.