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