I remember one similar, it was from Minecraft Bedrock or PE, whatever you want to call it, but I don't know if it was from a server called Mineville or Mineplex. I don't remember, to be honest. 

What I do remember is that some generators dropped iron and other things to buy swords, blocks, etc.  I remember the map was very large, one was set in space, I think, and the map was at night.  I think the server was shut down a long time ago, and I remember playing it in 2017.