This app was mentioned in 2 comments, with an average of 1.00 upvote
Direct Play store link: https://play.google.com/store/apps/details?id=com.doleearts.vrplanetdefense
Project title: VR Planet Defense for Google Cardboard
Promotion Type: feedback
Role: One man dev
Links:
Description: VR Planet Defense is a simple VR game made for Google Cardboard where you only need to move your head to aim at and attack meteorites to protect the planet.