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