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