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