Helmets are the second important item in Equipment. They provide less defence than Armors, but helmets are cheaper and more common than Legs with the same armor value.
Most low-level Players use Soldier Helmet, middle-levels Warrior Helmet or Crown Helmet (especially mages because of it's low weight) and high-levels use Royal Helmet or Demon Helmet which is part of Rare Set.
The strongest helmet is the Golden Helmet, also known as the Helmet of The Stars (HOTS).
The strongest helmet in Rookgaard, the newbie island, is the Legion Helmet.