I hope you will see this and read.
You should focus on making world more open (like minecraft).
That is the plan, but for testing reasons it is easier to use a small map now.
What about creating your own buildings in-game.
You can already make your own buildings
hello @tady welcome to the discourse 
you’re actually already able to make custom buildings.
Tell me how to make your own buildings.
Press the design your own buildings in build menu
Ok, thank you for sharing this.
Yeah, i got it, thanks.
glad @Teleros and i could be of some help