When I first started playing Factorio, this was my face- :|
After about two hours when I realized what this game was capable of, this was my face- :O
After almost six hundred hours: ....still :O

Honestly, six hundred hours
Where does the time even go

Anyway Factorio is great. It's great solo. It's great with other people. I live by the Ron Swanson review policy:

In general, I try never to speak with people, but you should know my recommendation is essentially a guarantee. Play this.