Steam Alchemy (蒸気錬成機) is a technology found in The World R:2, developed by humans. It is used within a guilds's @HOME to combine equipment of the same kind, giving them bonuses. It can not be used on equipment of Rarity 5, or on items already alchemized to +5. As of volume 2, armor and accessories can also be alchemized, which increases an armor's defense value and an accessories elemental attributes. Also, members of a guild at rank 6 or above can perform Alchemy through warp points without having to travel back to their @HOME.