Former Pittsburgh Steelers head coach Mike Tomlin is preparing to show the public a Minecraft city he has been building for 12 years. The project is drawing attention because Tomlin, now working in television broadcasting, has revealed an unexpected hobby beyond his long NFL career.

In a social media video, Tomlin described the game as a therapeutic way to step away from life’s pressures and teased a fuller video on his YouTube channel. An aerial preview shows a city with streets, a baseball field and detailed buildings; Tomlin has previously said he is a Minecraft fan. The article speculates that he may expand the city now he has more time away from coaching.