Goblins in the Mystara D&D setting are a small, bipedal humanoid race, typically standing between three and four feet tall. They are characterized by their squat, flat faces, pointed ears, and sharp teeth. Physically, they are lean and agile, a trait that makes them surprisingly effective at stealth and ambushing. Within the Known World, their appearance can vary significantly depending on their environment. For instance, common goblins have green or yellow skin, while those living in swamps have brown or black skin to better camouflage themselves. Desert goblins, found in arid regions, have chalky tan or yellow skin and are known for slicking back their bluish-black hair with animal butter.
The naming conventions of goblins are generally simple and practical, reflecting their short and brutal lives. Names are often single-syllable, harsh, and guttural, such as Gruk or Snag. It is also common for them to be given descriptive nicknames that refer to a physical trait or a notable action, like Bonebreaker or One-Ear. In some cases, goblins living near other races might adopt names that are poor imitations of those cultures' names.
Goblins and other "beastmen" in Mystara have a unique and tragic history. They are believed to be the reincarnated souls of ancient human and demihuman villains who were sent back to the world to atone for their wicked deeds. Over thousands of years, these souls evolved into the various goblinoid races. The goblins also have an intriguing connection to the Shadow Elves; some of their physical variations are thought to be the result of a long-ago intermingling.
Goblin society is typically tribal and strictly hierarchical, where the strongest individual rules. Their culture is built on a desire for power and a history of powerlessness. They prefer to use cunning, ambushes, and overwhelming numbers to defeat their enemies rather than engaging in a fair fight. Goblins generally live in squalid conditions in caves, ruins, or makeshift camps. They revere powerful "Immortals" (the Mystaran equivalent of gods) who are often former warlords and conquerors. Their shamans communicate with spirits and dark forces, using this power to benefit their tribe.