This game is probably the best "passive" game that I launch for like 20 minutes each day to do my thing, setup whatever needs setting up, build my base, send my dwellers on an adventure and turn it off for the day and I'll see where I'm at the next. It's not a game you can play for hours on end unless you like starting at a screen and occassionally click but it's a nice little background game that is probably better on desktop or on a phone to make time pass faster