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