What role does AI play in modern Game Development?

AI forms part of modern Game Development, upgrading Gameplay, character behavior, and dynamically changing environments.

AI will create adaptive opponents and Non-Player Characters (NPCs) in the game so that the game is always unpredictable every time one plays it, thus increasing the motivation for replays.

This also facilitates realistic character behavior in that the NPCs would be able to demonstrate natural activities, emotions, and decision-making, making interactions feel real.

Those worlds are a part of the procedural content and build themselves up in real-time according to the actions of the player. It’s what makes the difference in this game and its experience vivid.
AI enables the construction of much more complex, interesting, and responsive game worlds.