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.
Completed a level with help from each of the four classes.
Completed all levels as the Shaman.
Completed all levels in multiplayer.
Performed all the different combo finishers.
Juggled an enemy together with another player.
Completed all levels as the Mage.
Dealt over 9,000 damage with a single attack.
Unlocked 30 different armors.
Completed all challenges using one character.
Earned gold medals on all the main game levels.
Completed all levels without dying.
Killed 20 large enemies while riding a mount.
Avoided the minecarts in the Mine level.
Reached the max level.
Killed 100 enemies using the environment or traps.
Completed all levels as the Ranger.
Unlocked 100 different weapons.
Completed a level without taking any damage from enemies.
Completed all levels as the Warrior.
Defeated the boss in Act 4.
Avoided all falling rocks in the Citadel level.
Killed the mini-boss in the Lost Metropolis without being hit by it.
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.
Defeated the boss in Act 1.
Uppercutted 4 enemies into the air at the same time.
Spent at least 4 seconds on each page of the 'how to play' section.
Avoided getting hit during a battle sequence.
Completed all levels in the Jungle Hunt DLC without destroying any voodoo dolls.
Defeated the boss in Act 5.
Jumped into the piranha pool next to the boss.
Avoided all obstacles during the raft ride.
Threw 10 enemies into the Naruvu River.