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