As you may already know, Mojang doesn't let us prevent emerald from spawning via their generator settings (presets). I would like to somehow prevent all ores from generating (with all other generation behavior remaining purely vanilla). I don't want to generate a normal world and then have to pre-load chunks to the world border in order to replace ores (and then if I expand the border, I have to do this again). Additionally, I presume that if ore generation is ignored, the ores would become stone (not air). TerrainControl has an issue where water/lava do not flow when generated. OpenTerrainGenerator has an issue where lava pools fail to generate at bedrock (and also has the water/lava flowing issue). EpicWorldGenerator does not support vanilla world generation very well.