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