Armor

Armor, in its most general sense, is a material that can be used to protect entities or objects from projectiles, blunt impacts, heat, and other sources of physical damage. Armor can be worn by players, constructed around structures, or plated on the hulls of vessels.

Body Armor
Body armor is worn by players (and sometimes mobs) to protect against external attacks. This type of armor can be made from leather, chainmail, iron, gold, or diamond (in order of increasing strength). Enchantments can also be applied to body armor to enhance particular qualities such as fire protection, projectile protection, or durability. Armor that has the projectile protection enchantment is better suited to take impacts from bullets and arrows, making it a highly demanded item.

Structural Armor
Unlike body armor, structural armor is not always made from a particular set of materials. Any objects that are intended to protect a structure from damage (i.e. explosions, mining, shooting) can be considered structural armor. Commonly used materials may include steel, aluminum, and depleted uranium. Structures that are frequently armored include bunkers, forts, underground bases, military facilities, and hangars.

Ship Armor
Armor can also be applied to crafts and vessels to protect against ground fire or attacks from other nearby vessels. Armor for vessels must be wisely chosen, as heavy armor tends to add excess weight to a ship. Ships' hulls are often made of aluminum or steel, making them impervious to small arms fire and offering some level of protection from explosions and heavy munitions fire.