John Hanke, founder and CEO of Niantic and creator of Pokémon Go, speaking at the Mobile World Congress in 2017.

Video games must prioritize safety over profit to prevent gaming addiction, the CEO behind one of the world's most popular mobile games told CNBC.

Niantic — the Google-developed start-up that created mobile games "Pokemon Go" and "Harry Potter: Wizards Unite" — uses augmented reality and location data to bring gameplay into real-world scenarios.