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