To celebrate the continued overwhelming popularity of its free-to-play Vault life sim Fallout Shelter, Bethesda released some staggering stats about the game and its simulations.

In its debut month, according to the handy graphic below, there were more than one billion gameplay sessions totaling more than 29 million hours. In that time, nearly 82 million babies were born in more than 85 million vaults.

And that's on iOS only. The game didn't arrive on Android until last week, nearly two months after the iOS release.

If you're interested in death counts, raider attacks, exploring and radroaches, then check out the graph below. Or better still, pick up the free game on iOS or Android.