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