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