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