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.
Leave Síle to die in the unstable portal.
Help Roche rescue Anais from the Kaedweni camp.
Collect 10000 orens.
Stop Roche from killing Henselt.
Sneak through the lower camp without raising the alarm.
Kill all the trolls in the game.
Roll five-of-a-kind at dice poker.
Cut off a tentacle using the kayran trap.
Bow before the Sun at a Summer Shrine.
Successfully sneak through Loredo's garden and find the component of the kayran trap.
Spare or save Saskia.
Help Iorveth find the dagger needed to free Saskia from the spell that holds her.
Achieve character level 35.
Finish the game by sparing Letho.
Finish the game at any difficulty level.
Finish the game by killing Letho.
Perform three successful ripostes in a row.
Reach the Epilogue of the game.
Kill the dragon.
Save Síle from dying in the unstable portal.
Finish all quests involing the destruction of monster nests.
Bow to Death at a Winter Shrine.
Complete Chapter 2.
Kill three foes at once by performing a group finisher.
Spare all 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.
Kill 500 foes.
Defeat all opponents in the Kaedweni arena.
Enhance abilities using mutagens at least five times.
Acquire the Combat Acumen ability.
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.
Brew the ostmurk potion.
Kill a foe by deflecting his own arrow at him.
Use alchemy to brew five potions or oils.
Acquire the Mutant ability.
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.
Finish the Prologue.
Win an arm wrestling match, a dice poker game and a fist fight.
Hit Count Etcheverry using the ballista.
Kill 10 foes in a row without losing any Vitality.
Drink one potion.