The Adamant full helm is the third best full helmet in RuneScape for free to play. The helm provides greater Defence bonuses than its medium helm counterpart, but is inferior to both regular and full rune helmets. Players need a Defence level of 40 to wear this helm.
To obtain an adamant full helm the player can either buy one from Peksa's Helmet Shop in Gunnarsgrunn, obtain one as a monster drop, trade with another player, receive one as loot from silver chests in the Shade Catacombs or make one using the Smithing skill (level 77 Smithing required). Smithing an adamant full helm requires 2 Adamant bars, and gives the player 125 Smithing experience.
Trimmed adamant full helms and Gold-trimmed adamant full helms are variants to the normal adamant full helms. These trimmed helms may be obtained as rewards from level 2 Treasure Trails. They cannot be made through the Smithing skill.
Heraldic adamant full helms (h1-h5) may be obtained as rewards from level 2 Treasure Trails. As with trimmed helms, they cannot be made through the Smithing skill.