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