All I need is some human egg spawner. There should be a female and a male(two eggs).
Also some rail tracks and minecarts. You should be able to work with advanced electrics in the game to work with the railroads, such as switching or brakes for them.
Lastly, mulitplayer! This is probably one of the features I’d want that’s being able to collaborate and communicate. We all need human interaction? So why not in a virtual world?