It’s a game (Fallout shelter)


Ty wallpapercave.com
And Google

This is a game
From 2016/2017

On PC and mobile. I may play, hmmm.

Fallout Shelter puts you in control of a state-of-the-art underground Vault from Vault-Tec. Build the perfect Vault, keep your Dwellers happy, and protect them from the dangers of the Wasteland.