I'm playing Skyblock v4.02 from here: https://www.planetminecraft.com/project/skyblock-4/ I have a basic nether fortress farm that just has one-block-wide spawning rooms where I can hit the mobs' feet. However, mob spawning is super slow in the nether, compared to the overworld. It takes several minutes to get ~15 mobs, and it never seems to go above that amount. My view distance is set to 16, and I don't think I have any rules issues as I am getting spawns, just super slowly.

Does anyone know why my nether mobs are spawning so slowly? Being a skyblock world, there is no other land in render distance so it's not an issue of mobs spawning elsewhere.

  • A world download could help here. Mar 23, 2020 at 23:31
  • What is the preferred way to share a world file?
    – Johonn
    Mar 24, 2020 at 21:08
  • Upload it anywhere, for example Dropbox or Google Drive, and link it. Mar 25, 2020 at 1:27
  • dropbox.com/s/ys207f6b3j3ul38/Skyblock%204.02.zip?dl=0 Playing in 1.13.2
    – Johonn
    Mar 25, 2020 at 20:17
  • 1
    Actually, one last thing: Try placing more blocks around the area in the Nether. They don't need to be valid spawn spaces, but this might increase the potential starting locations for a pack spawn, of which then more mobs can end up inside your spawnable area. Mar 26, 2020 at 21:48

1 Answer 1


unless I misunderstood, you made 1 block wide spawning areas? (Comment if you meant something different) I'm fairly sure the most efficient spawn area is 9x3x9.

Edit: Sorry, I thought you meant farming blaze spawners.

Edit 2, Attempt at redemption: I checked out the world file and I can sort of see why it wasn't spawning much, the whole spawning area is two (1,1,30) columns which, even with them being the only spots spawning, is a tiny space for a mob farm, I'd go for Fabian Roling's suggestion (see below) and do his circle with radius 128 and more platforms thinger, also I'd recommend looking at the mob farm wiki for some ideas (the wiki).

Anyway, I hope I wasn't a complete waste of time, and I hope you have make a successful mob farm.

  • The most efficient spawn area would be a circle with radius 128 and more platforms within that 128m radius sphere. I don't know where you got 9×3×9 from. Dec 4, 2020 at 17:54
  • Oh sorry, I thought they meant spawners.
    – Ash Coombs
    Dec 5, 2020 at 18:40
  • Even then it's not correct. Dec 5, 2020 at 19:03
  • Ok fine, I admit it I'm a noob.
    – Ash Coombs
    Dec 6, 2020 at 4:23
  • Oh, it's for a fortress, I forgot. Then it's of course not useful to have a spawning platform outside the fortress boundaries. But I don't know where they are, I think you can only figure that out with spawning tests or by looking at the world save in NBTExplorer and even then it's difficult to get the exact correct position. Dec 6, 2020 at 11:37

You must log in to answer this question.

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