I build this creeper farm with a cat and waterflow mechanics to farm gunpowder but I cant find a good spot to afk in.

here is a screenshot of the place, I've put carpets to prevent spiders from spawning and I've put wooden trapdoors on top so only creepers can spawn in here.

The cat in the middle scares the creepers that then fall in the water stream and get taken to a magma block which kills them in about 20 seconds.

It's built under the ocean and I've lit up the caves surrounding the farm so spawn rate should be good.

When I come close to the area and enter the farm I get a few creepers spawning and then it all shuts down.

enter image description here

I've tried standing here -

enter image description here

which is about 30-ish blocks away from the center of the farm

and I've tried standing on top of it like this

enter image description here

I've been afk for hours but no creepers spawn.

I know that mobs will not spawn more than 128 blocks away from a player, and if they are 32-128 blocks away from a player they will start to randomly spawn and despawn. The optimal distance I thought would be around 30-ish but the creepers aren't spawning.

Does anyone have any idea why they don't spawn at all and at what distance I should be AFK in order to get it to run?

  • There was a thing implemented which prevented mobs from spawning if you weren't in the chunk or something like that. When i found out about it, it ruined my mob farm.
    – L_Church
    Commented Jun 5, 2018 at 15:18
  • 1
    So that would mean i need to be in the same chunk -> no more than 16 blocks away from the most far away block -> mobs only spawn 24 blocks away from a player. Am I missing something ? Commented Jun 5, 2018 at 15:20
  • i think that question is better asked for myself. am i missing something in my own experiences ... maybe it is to do with how they are creepers? is there anything online about this stuff?
    – L_Church
    Commented Jun 5, 2018 at 15:23
  • 2
    minecraft.gamepedia.com/Spawn - jump to SPAWN CONDITIONS for MOBS Spawn Conditions The following rules apply to all mobs: Can only spawn 24 blocks spherical radius or further from the player. Cannot spawn if the block below them is air. Cannot spawn if that mob would collide with an existing mob. Cannot spawn on slabs or carpet. Commented Jun 5, 2018 at 15:26
  • @DenislavKaragiozov What is your question then? It's right there, where you linked to. Commented Jun 5, 2018 at 15:38

4 Answers 4


It is good that your farm is low in the world if you are lower there are more spawns, however you need to light up all the caves within a 128 radius. Otherwise mobs spawn there filling up the mob cap in a singleplayer world this is 70 mobs, if the mobcap is full, there will be no spawns.


The entire area where mobs are meant to be (spawn platforms, drop chute, kill platforms) must be within 128 blocks from you - any farther and the creepers will despawn. Also, at least the spawn platforms must be more than 24 blocks away; mobs don't spawn any closer to the player - so when you come to peek into your farm, all spawns freeze. Anywhere in between is fine.

So, for optimal results, your afking platform should be slightly less than 128 blocks above the lowest part of the farm (the killing floor); additionally to benefit from the low location of the farm in increased spawn rates, it's good to have anything above the spawn platforms be as low as possible - so build the platform slightly to the side, not directly above the spawn platforms.

Note lighting all the caves within 128 blocks (sphere) from your afking spot is crucial. Even a small unlit area will keep spawning mobs eating into the mob cap and gradually making your farm grind to a halt as a crowd of mobs accumulates in a single unlit cave. If you're unable to find all the spots, a rather poor but better than nothing way around that is to despawn all mobs periodically - so you may expand your elevator/tower of your farm to (62+128=) y=190, a spot you'd visit occasionally to despawn all the mobs in missed, unlit caverns (but also unfortunately inside the farm too) and restore the rates to 100% for a time.

Let me add, utilizing the ocean bottom was a pretty smart move as only a little section of the sphere remains to be lit up. You will get the drowned occasionally spawning and spawn-proofing against them is nearly impossible, but their number is sufficiently low they won't ruin the farm.


It needs to be about 235 blocks on the y axis or the game will stop spawning mobs because on the amount of entities around the area so the higher the better

  • 1
    I’ve made plenty of farms and this is the only solution I could come up with when making the and it works the reason this is the problem in because you afk spot is underground so your farm would be to with creepers and things like that keep them as high as possible Commented Oct 7, 2019 at 10:51
  • Or other mob will spawn in other locations instead and not in you farm Commented Oct 7, 2019 at 10:52
  • You can edit your answer if you want to add additional information Commented Oct 7, 2019 at 11:32
  • Where in the world did you get 235 blocks, for an under-ocean farm?! That puts the farm outside the despawn sphere.
    – SF.
    Commented Dec 11, 2020 at 22:09

I'm not sure they spawn underground as much as they do above ground. The game probably sees the farm as a house and there's probably code in the game preventing creepers from spawning inside player-built buildings, and probably buildings in general. It's been a while since I've played the game though, so correct me if I'm wrong.
-So maybe try removing the roof.
-It could also be the cat. Maybe creepers don't spawn around them out of fear.

  • Btw nice computer Commented Jun 6, 2018 at 17:43
  • 2
    lol as far as I know, everything you just said is false. The roof is necessary for the light, player built buildings don't mean anything, and cat's allow creepers to spawn. They just don't go towards the cat, and instead run from it. Commented May 1, 2020 at 16:00

You must log in to answer this question.

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