Full list of all 56 Two Worlds II achievements worth 1,250 gamerscore. It takes around 50-60 hours to unlock all of the achievements in the base game.
The base game contains 46 achievements worth 1,000 Gamerscore, and there are 2 DLC packs containing 10 achievements worth 250 Gamerscore.
Completed the Single Player Campaign
Effectively use Knockdown 30 times (Single Player Campaign)
Kill 30 enemies using Fire Arrow (Single Player Campaign)
Kill 50 enemies with magic (Single Player Campaign)
Kill 50 enemies using Multi Arrows (Single Player Campaign)
Summon 50 monsters (Single Player Campaign)
Complete Chapter III in the Single Player Campaign
Reach Level 40 (Single Player Campaign)
Set 40 traps or bombs (Single Player Campaign)
Steal from 25 people (Single Player Campaign)
Complete Chapter II in the Single Player Campaign
Receive the gift of the Scavengers
Complete the Mage's Guild Questline
Complete Chapter I in the Single Player Campaign
Collect all 4 Lost Runes: Human, Elven, Dwarven and Orcish (Single Player Campaign)
Wake the Army of Golems
Complete Chapter II in the Multiplayer Campaign
Effectively use Battle Cry 75 times (Single Player Campaign)
Survive the Arena
Complete 10 Bulletin Board Quests
Reach Level 20 (Single Player Campaign)
Build 15 buildings in Village Mode
Build 5 buildings in Village Mode
Complete Chapter I in the Multiplayer Campaign
Use the Oculus (Single Player Campaign)
Perform a song, hitting 100% of the notes (Single Player Campaign)
Lockpick 50 locks (Single Player Campaign)
Create a potion (Single Player Campaign)
Upgrade a weapon or piece of armor (Single Player Campaign)
Complete Alsorna Introduction
Create a spell (Single Player Campaign)
Escape from Castle Vahkmaar
Kill 20 enemies using Death Strike (Single Player Campaign)
Complete the Brotherhood Questline
Complete The Thieve's Guild Questline
Complete the Merchant's Guild Questline
Explore 25 dungeons (Single Player Campaign)
Complete Chapter III in the Multiplayer Campaign
Complete Chapter IV in the Multiplayer Campaign
Complete Chapter V in the Multiplayer Campaign
Complete Chapter VI in the Multiplayer Campaign
Complete Chapter VII in the Multiplayer Campaign
Win 5 Deathmatches
Win 5 Duels
Win 5 Crystal Capture matches
Confront Mirage
Complete 4 new multiplayer adventure maps
Slay the Bailiff and his minions
Kill the Basilisk
Finish the Lovers' Conspiracy storyline
Defeat Corr Amarok
Annihilate the Phobias
Complete Pirates of the Flying Fortress
Find your Treasure
Kill 100 enemies with crossbow (Single player campaign)
Reach 100 points of reputation amongst the pirates