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