Full list of all 35 Sacred Citadel achievements worth 500 gamerscore. It takes around 20-25 hours to unlock all of the achievements in the base game.
The base game contains 30 achievements worth 400 Gamerscore, and there is 1 DLC pack containing 5 achievements worth 100 Gamerscore.
Reached the max level.
Completed all levels as the Mage.
Completed all levels in multiplayer.
Performed all the different combo finishers.
Completed a level with help from each of the four classes.
Completed all levels as the Ranger.
Completed all levels as the Shaman.
Killed 100 enemies using the environment or traps.
Juggled an enemy together with another player.
Earned gold medals on all the main game levels.
Completed all challenges using one character.
Dealt over 9,000 damage with a single attack.
Killed the mini-boss in the Lost Metropolis without being hit by it.
Avoided all falling rocks in the Citadel level.
Unlocked 100 different weapons.
Killed 20 large enemies while riding a mount.
Completed all levels as the Warrior.
Completed all levels without dying.
Defeated the boss in Act 4.
Unlocked 30 different armors.
Avoided the minecarts in the Mine level.
Completed a level without taking any damage from enemies.
Defeated the boss in Act 3.
Avoided the acid attacks during the elevator ride in the Queen's Tower.
Defeated the boss in Act 2.
Completed the Tank Garrison level without using the tank.
Uppercutted 4 enemies into the air at the same time.
Defeated the boss in Act 1.
Avoided getting hit during a battle sequence.
Spent at least 4 seconds on each page of the 'how to play' section.
Completed all levels in the Jungle Hunt DLC without destroying any voodoo dolls.
Avoided all obstacles during the raft ride.
Jumped into the piranha pool next to the boss.
Defeated the boss in Act 5.
Threw 10 enemies into the Naruvu River.