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