There are 2 repositories under augmented-reality-game topic.
Augmented Reality game for Android. Your Castle needs to be protected from enemies. Powered by ARCore, Unity
Fortune Cookie VisionPro is an AR app based on Apple's VisionOS and RealityKit, allowing users to toss a virtual fortune cookie to reveal daily uplifting messages.
Android client for AR-diorama API. Written in C++ and Kotlin
Masonry-AR is an augmented reality (AR) game centered around Freemasonry. Players engage in strategic gameplay, building Masonic lodges, and competing for control over real-world locations.
Example of augmented reality application