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