Love your players, and help them love each other. It motivates your developers. It converts free players into spenders. It gives you a canary in a production's coal mine of glitches, and guards you against catastrophe. Most importantly - your competitors aren't doing it yet. Learn about the infrastructure that drives player communities, the metrics that prove their value, and the practices that make them form the skeleton of effective game development. The space for community-first mobile game companies is wide open.