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 as the Mage.
Dealt over 9,000 damage with a single attack.
Avoided the minecarts in the Mine level.
Completed the Tank Garrison level without using the tank.
Completed all levels as the Shaman.
Completed all levels in multiplayer.
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.
Uppercutted 4 enemies into the air at the same time.
Defeated the boss in Act 2.
Juggled an enemy together with another player.
Defeated the boss in Act 1.
Avoided getting hit during a battle sequence.
Complete a level with help from each of the four classes.
Reach the max level.
Unlock 100 different weapons.
Unlock 30 different armors.
Perform all the different combo finishers.
Earn gold medals on all the main game levels.
Avoid all falling rocks in the Citadel level.
Complete all challenges using one character.
Kill 20 large enemies while riding a mount.
Kill 100 enemies using the environment or traps.
Complete all levels as the Warrior.
Complete all levels as the Ranger.
Spend at least 4 seconds on each page of the 'how to play' section.
Complete all levels without dying.
Complete a level without taking any damage from enemies.
Kill the mini-boss in the Lost Metropolis without being hit by it.
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.