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