Here is the full list of all 50 The Witcher 2: Assassins of Kings achievements worth 1,000 gamerscore.
Roll five-of-a-kind at dice poker.
Finish the game while playing at the Dark difficulty level.
Perform three successful ripostes in a row.
Help Iorveth find the dagger needed to free Saskia from the spell that holds her.
Sneak through the lower camp without raising the alarm.
Spare all trolls in the game.
Kill more than one opponent using a single exploding bomb.
Survive your 30th fight in the Arena
Survive your 5th fight in the Arena
Finish the game by sparing Letho.
Finish the game by killing Letho.
Finish the game at any difficulty level.
Spare or save Saskia.
Complete Chapter 3.
Kill the dragon.
Achieve character level 35.
Leave Síle to die in the unstable portal.
Save Síle from dying in the unstable portal.
Help Roche rescue Anais from the Kaedweni camp.
Finish all quests involing the destruction of monster nests.
Enhance abilities using mutagens at least five times.
Collect 10000 orens.
Complete Chapter 2.
Stop Roche from killing Henselt.
Kill all the trolls in the game.
Kill the draug.
Kill three foes at once by performing a group finisher.
Relive all of Auckes's memories in Dethmold's vision.
Kill a foe by deflecting his own arrow at him.
Kill 500 foes.
Kill 10 foes in a row without losing any Vitality.
Seduce Ves.
Defeat all opponents in the Kaedweni arena.
Acquire the Mutant ability.
Acquire the Sense of Magic ability.
Acquire the Combat Acumen ability.
Tour the camp with Zyvik.
Complete Chapter 1.
Craft a suit of armor from elements of the kayran's carapace.
Achieve character level 10.
Kill the kayran.
Cut off a tentacle using the kayran trap.
Win an arm wrestling match, a dice poker game and a fist fight.
Successfully sneak through Loredo's garden and find the component of the kayran trap.
Find all additional information about the insane asylum's history.
Intimidate someone.
Hire a craftsman to create an item.
Complete the Prologue.
Use alchemy to brew five potions or oils.
Hit Count Etcheverry using the ballista.