I put in 180 hours, I'll be back when there is a new update. People like to build, explore, just chill out and relax and screw around. It's why games like No Man's Sky is popular as well. Heck, its why Minecraft still has over 10 Million players a day 10 years later.

If you need bosses to kill, boxes to check off constantly, and constant conflict, then this sort of game won't hold long term appeal to you, but everyone has different taste. I never understood why Fortnite is so popular, but whatever people like different things.