AI-made stealth games

A stealth game is a video game in which the player primarily uses stealth to avoid or overcome opponents, and avoidance is often rewarded over direct combat. The core loop is to watch patrols, hide or move quietly, slip past or strike from concealment, and retry if spotted. Metal Gear (1987), Thief: The Dark Project (1998), Splinter Cell and Hitman are well-known examples.

The code has to model what enemies can perceive: vision cones for line of sight, sound detection tied to how the player moves, and alert states that change enemy behavior once they notice something. Light and shadow can affect visibility, and enemies usually follow regular patrol patterns.

In a browser, the Web Audio API's PannerNode places sounds in 3D space around the listener, so players can hear where a guard's footsteps come from.