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