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