State Trees are a data structure used in computer science to represent the various states of a system and the transitions between them. Each node in a state tree represents a specific state, while the edges connecting the nodes indicate possible transitions. This structure is particularly useful in modeling systems like video games, automated processes, or decision-making algorithms. In a state tree, the root node typically represents the initial state, and the leaves represent terminal states. By traversing the tree, one can explore all possible states and transitions, making it easier to analyze and optimize the system's behavior. State trees are often employed in artificial intelligence and game development.