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