StationaryNomad: Here is a Steam review copied and pasted for your perusal. If it is true, I 100% for sure won't be buying this. "Cant launch without an active internet connection.
Its singleplayer only, and doesnt have any online features, so it purely connects to their servers for data collection.
It also does not ask/tell you that it does. Pretty sure that illegal but dont take my word for that.
And if you try to stop it, it locks you out of the game and becomes unplayable.
THIS IS NOT OKAY - DO NOT BUY"
Apparently it's 'just' a crappy launcher which is, for some reason, web-based. It's causing other problems too, so hopefully it'll be changed soon.
Oddly, I tried running the game directly out of curiosity, and it added a bunch of debug options to the main menu.