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