Thanks for the hints. I see Dwarf Fortress different, as it is free (not free to play). As it is not sold there is no need for the devs to set the magical 1.0. You can see similar effects on many Open Source Projects, that need long time to reach 1.0, although they are long time already usable and used.
I just wanted to bring it up because it is a cool project, and somewhat relevant.
I put it to the side for that reason.
The devs do take donations and have a Patreon.
Watch out Star Citizen, these guys are coming for your: largest crowd funded project, title.