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