It uses libgdx and is written in Java. All the models where made in house using blender. I used AI to help build this, that's why I was able to get so much done.
I'm glad to hear you used AI. Good for you. Don't listen to the nay sayers. Its a tool, a good one. I have been a programmer for over 50 years and I would have given anything to have ChatGPT, or Claude as a guide.