PI VR How Things Work is an educational game that teaches players about simple machines through a fun and interactive virtual reality experience. Developed by Publications International Ltd, this free app is available on Android devices.

In this game, players can explore a clock tower and see simple machines in action. They can learn about gears, levers, and other simple machines through videos, photographs, animations, and more. The app also includes brain-teaser quizzes to test players' knowledge.

Overall, PI VR How Things Work is a great way for kids and adults alike to learn about physics concepts in a fun and engaging way.