Adaptive AI is used in a variety of games, depending on the genre, theme, and mechanics. For example, Left 4 Dead uses the AI Director, a dynamic scripting system which controls the spawning and placement of enemies, items, and events based on the player's actions, health, and location. F.E.A.R. employs a goal-oriented action planning system that allows enemies to choose from a set of actions and goals based on the environment and the player's behavior. Alien: Isolation utilizes a reinforcement learning system that enables the alien to learn from its own actions and rewards, and adapt its hunting and hiding strategies based on the player's actions and location. Spore uses an evolutionary algorithm system that allows creatures to evolve their appearance, abilities, and behavior based on the player's choices and interactions. Lastly, Horizon Zero Dawn's neural network system enables machines to learn from data and make predictions or decisions based on the player's actions and the environment.