I have a default generated world and I created a few things in it. I want it to become superflat and I don't want to loose any progress I made in the world. Is that possible ? I've seen the opposite here but I can't find the generatorType variable in my level.dat .

  • 3
    With the way Minecraft works, changing the world's generator for a superflat setting will only have an effect of new chunks of land. So all of your existing world will remain the same, the superflat areas will only be the new lands you discover in your world.
    – Gnoupi
    Jan 7, 2013 at 13:49

1 Answer 1


It could actually be generatorName. You may also need to set generatorOptions to one of the SuperFlat preset.

A screenshot of NBTExplorer


Just tried that (generatorOptions = 2;7,2x3,2;1;village) on client and this happened near the spawn point:

Changing default world type to superflat...

It's probably because I save and quit too early... lol


enter image description here

  • 2
    now I have squids keep falling down...
    – Alvin Wong
    Jan 7, 2013 at 13:30
  • The problem seems to be that changing the generator changes the new chunks, no? Not the existing ones. This, or you got the wrong parameters for the generator :P
    – Gnoupi
    Jan 7, 2013 at 13:37
  • @Gnoupi because I basically just create the work, then in one second I press Esc -> Save and Quit, probably the game hasn't yet generated all the visible chunks... And I would really encourage using a superflat preset which has a ground level of 64.
    – Alvin Wong
    Jan 7, 2013 at 13:41
  • 1
    ah, that explains indeed. You have parts which are made with the initial (random) generator, before you saved and changed it.
    – Gnoupi
    Jan 7, 2013 at 13:48
  • 1
    Sing to the tune of "raindrops keep falling on my head": "Squids keep falling in my world". Sep 20, 2014 at 16:57

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .