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