Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Apprentice	Kill 100 enemies.
Archmage	Kill 10000 enemies.
Heavy Fire	Create 10 big fireballs.
Knight	Kill 20 enemies with melee weapons.
Mage	Kill 1000 enemies.
Novice	Kill 10 enemies.
Survivor	Survive for 10 minutes.
Swordmaster	Kill 40 enemies with melee weapons.
Untouchable	Kill 20 enemies without being damaged.
Viking	Kill 100 enemies with melee weapons.