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