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