Goblins

Like all humanoid ancestries, there are many different goblins and goblin cultures, each with their own ideals. Known to themselves as rogabrin, meaning “more of us” in Goblin, they are one of the most numerous humanoids in the world. They can be found in every slums humans occupy and places many others avoid, like deep cave systems. Their proportionally long arms and prehensile toes make them equally well-adapted to arboreal environments. Goblins live comfortably in treetop cities and subterranean environments with stalactites, ledges, and chasms. Others prefer to dwell in tight-knit neighborhoods of diverse cities. Those goblins that cross swords with adventuring heroes are the worst of the bunch, thieves and murderers shunned by their own people and driven to live on society’s outskirts. 
In society and in exile, goblins survive and thrive because they work together. A single goblin forced into the wild is terrified. A dozen outlaw goblins are supremely (and perhaps overly) confident. Such groups often become bandits that ambush travelers in their territories, be it desert, forest, or underground. Larger bands may become unscrupulous mercenaries serving powerful villains. No matter how they’re encountered, goblins prefer to fight as an overwhelming force and flee when foes outnumber friends.
Short, lithe, and long-armed, goblins are built for mobility, stealth, and climbing. Goblins that survive life in untamed wilderness and twisting caves utilize their natural agility to hide from threats and flee when found. These crafty skirmishers might run wild through battle, hacking at their enemies’ knees, or unleash arrows as they dart from tree to tree.