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