A Minecraft Mod is a modification created by players or developers that alters the gameplay of the popular video game Minecraft. These mods can add new features, items, creatures, or mechanics, enhancing the overall experience. Players can download and install mods to customize their game according to their preferences. Mods can range from simple changes, like new blocks or tools, to complex additions, such as new dimensions or gameplay systems. The Minecraft community actively shares and creates mods, making it a vibrant part of the game's ecosystem. Players often use modding platforms like Forge or Fabric to manage and install these modifications easily.