Playing it every day. Sometimes, it's quite stressful, lol, but you don't have to play all the time. Just get in there and take care of business, and then leave. I really like it.
Oh, and btw, the reason I noticed this game, was that I started playing Elder Scrolls Legends (card game), and the launcher for that game shows Shelter first. So they lured me in. What category would Legends go under in here? I could do a search, but since I'm already typing, I might as well ask.