worldgen_settings.json

{
  "bonus_chest": false,
  "dimensions": {
    "minecraft:overworld": {
      "generator": {
        "biome_source": {
          "seed": -1464245863,
          "large_biomes": false,
          "type": "minecraft:vanilla_layered"
        },
        "seed": -1464245863,
        "settings": "minecraft:overworld",
        "type": "minecraft:noise"
      },
      "type": "minecraft:overworld"
    },
    "minecraft:the_nether": {
      "generator": {
        "biome_source": {
          "seed": -1464245863,
          "preset": "minecraft:nether",
          "type": "minecraft:multi_noise"
        },
        "seed": -1464245863,
        "settings": "minecraft:nether",
        "type": "minecraft:noise"
      },
      "type": "minecraft:the_nether"
    },
    "minecraft:the_end": {
      "generator": {
        "biome_source": {
          "seed": -1464245863,
          "type": "minecraft:the_end"
        },
        "seed": -1464245863,
        "settings": "minecraft:end",
        "type": "minecraft:noise"
      },
      "type": "minecraft:the_end"
    },
    "minecraft:use_teleport_command": {
      "generator": {
        "biome_source": {
          "seed": 1516683359872193970,
          "biomes": [
            {
              "parameters": {
                "altitude": 0.0,
                "weirdness": 0.0,
                "offset": 0.0,
                "temparature": 0.0,
                "humidity": 0.0
              },
              "biome": "minecraft:plains"
            },
            {
              "parameters": {
                "altitude": 0.0,
                "weirdness": 0.0,
                "offset": 0.0,
                "temparature": 0.0,
                "humidity": -0.5
              },
              "biome": "minecraft:the_end"
            },
            {
              "parameters": {
                "altitude": 0.0,
                "weirdness": 0.0,
                "offset": 0.0,
                "temparature": 0.5,
                "humidity": 0.0
              },
              "biome": "minecraft:mushroom_fields"
            },
            {
              "parameters": {
                "altitude": 0.0,
                "weirdness": 0.0,
                "offset": 0.0,
                "temparature": 0.0,
                "humidity": 0.5
              },
              "biome": "minecraft:mountains"
            },
            {
              "parameters": {
                "altitude": 0.0,
                "weirdness": 0.0,
                "offset": 0.0,
                "temparature": -0.5,
                "humidity": 0.0
              },
              "biome": "minecraft:shattered_savanna"
            }
          ],
          "type": "minecraft:multi_noise"
        },
        "seed": -1464245863,
        "settings": {
          "bedrock_roof_position": -10,
          "bedrock_floor_position": -10,
          "sea_level": 0,
          "disable_mob_generation": true,
          "structures": {
            "structures": {
              "minecraft:jungle_pyramid": {
                "spacing": 32,
                "separation": 8,
                "salt": 14357619
              },
              "minecraft:endcity": {
                "spacing": 20,
                "separation": 11,
                "salt": 10387313
              },
              "minecraft:village": {
                "spacing": 32,
                "separation": 8,
                "salt": 10387312
              },
              "minecraft:ruined_portal": {
                "spacing": 40,
                "separation": 15,
                "salt": 34222645
              },
              "minecraft:igloo": {
                "spacing": 32,
                "separation": 8,
                "salt": 14357618
              },
              "minecraft:stronghold": {
                "spacing": 1,
                "separation": 0,
                "salt": 0
              },
              "minecraft:bastion_remnant": {
                "spacing": 30,
                "separation": 4,
                "salt": 30084232
              },
              "minecraft:desert_pyramid": {
                "spacing": 32,
                "separation": 8,
                "salt": 14357617
              },
              "minecraft:nether_fossil": {
                "spacing": 2,
                "separation": 1,
                "salt": 14357921
              },
              "minecraft:mansion": {
                "spacing": 80,
                "separation": 20,
                "salt": 10387319
              },
              "minecraft:shipwreck": {
                "spacing": 24,
                "separation": 4,
                "salt": 165745295
              },
              "minecraft:monument": {
                "spacing": 32,
                "separation": 5,
                "salt": 10387313
              },
              "minecraft:swamp_hut": {
                "spacing": 32,
                "separation": 8,
                "salt": 14357620
              },
              "minecraft:fortress": {
                "spacing": 30,
                "separation": 4,
                "salt": 30084232
              },
              "minecraft:pillager_outpost": {
                "spacing": 32,
                "separation": 8,
                "salt": 165745296
              },
              "minecraft:ocean_ruin": {
                "spacing": 20,
                "separation": 8,
                "salt": 14357621
              }
            }
          },
          "noise": {
            "island_noise_override": true,
            "density_factor": 0.0,
            "density_offset": 0.0,
            "simplex_surface_noise": true,
            "bottom_slide": {
              "target": -30,
              "size": 7,
              "offset": 1
            },
            "size_horizontal": 2,
            "size_vertical": 1,
            "height": 128,
            "sampling": {
              "xz_scale": 2.0,
              "y_scale": 1.0,
              "xz_factor": 80.0,
              "y_factor": 160.0
            },
            "top_slide": {
              "target": -3000,
              "size": 64,
              "offset": -46
            }
          },
          "default_block": {
            "Name": "minecraft:end_stone"
          },
          "default_fluid": {
            "Name": "minecraft:air"
          }
        },
        "type": "minecraft:noise"
      },
      "type": {
        "ultrawarm": false,
        "natural": false,
        "shrunk": false,
        "ambient_light": 0.5,
        "fixed_time": 6000,
        "has_skylight": true,
        "has_ceiling": false
      }
    }
  },
  "seed": -1464245863,
  "generate_features": true
}

This depends on the natural property in type, when using an associative array and not one of the three dimension IDs. The overworld has type set to false, the end and the nether have it set to true.

I've tried setting the 'natural' property to true but beds still explode and so do respawn anchors. When you say "type" to false do you mean it can't contain any custom stuff, it just has to be "type": "minecraft:overworld"?

there is a stronghold associative array in parallel to the settings.structures.structures associative array

Could you give an example and where/what level it should go in the .json file? I appreciate the help greatly.

What does “salt” refer to in structure generation? I generated a dimension but all the structures clump up together in the same spots and I’m wondering if this has anything to do with it.

What does “salt” refer to in structure generation? I generated a dimension but all the structures clump up together in the same spots and I’m wondering if this has anything to do with it.

salt (integer):[needs testing] A number that assists in randomization; see salt (cryptography). from custom wiki

Also looking for the way to change portal tp destination.
Also looking for the way to generate default structers like Stronghold in any dimension, because now they are certnaily connected to certain one.

How do I run this on a server? Where do I add the path to the JSON?

Is there a discord or something where people are working on figuring this stuff out? Code for custom dimensions seems extremely finnicky, and the above code works in 20w21a but not in the latest pre release. Would be great to have a group working on figuring out how it all works.

Is there a discord

minecraft command discord is a good place to start

the above code works in 20w21a but not in the latest pre release

@ATMLVE
There was a typo in the original code. Find/replace temparature with temperature

Where do I place this file for server jar?