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.
Kill the dragon.
Finish the game while playing at the Insane difficulty level.
Help Roche rescue Anais from the Kaedweni camp.
Stop Roche from killing Henselt.
Relive all of Auckes's memories in Dethmold's vision.
Kill all the trolls in the game.
Seduce Ves.
Defeat all opponents in the Kaedweni arena.
Tour the camp with Zyvik.
Kill a foe by deflecting his own arrow at him.
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.
Help Iorveth find the dagger needed to free Saskia from the spell that holds her.
Achieve character level 35.
Collect 10000 orens.
Bow to Death at a Winter Shrine.
Complete Chapter 2.
Kill more than one opponent using a single exploding bomb.
Kill the draug.
Bow before the Sun at a Summer Shrine.
Kill three foes at once by performing a group finisher.
Sneak through the lower camp without raising the alarm.
Perform three successful ripostes in a row.
Kill 500 foes.
Acquire the Mutant ability.
Spare all trolls in the game.
Acquire the Sense of Magic ability.
Craft a suit of armor from elements of the kayran's carapace.
Acquire the Combat Acumen ability.
Enhance abilities using mutagens at least five times.
Complete Chapter 1.
Achieve character level 10.
Kill the kayran.
Cut off a tentacle using the kayran trap.
Find all additional information about the insane asylum's history.
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.
Use alchemy to brew five potions or oils.
Drink one potion.
Finish the Prologue.
Intimidate someone.
Kill 10 foes in a row without losing any Vitality.
Hit Count Etcheverry using the ballista.