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