I used a slime chunk finder for PE and created multiple slime farms around chunks I found in different areas. However in both farms I have never had a single slime spawn. I went through the cave systems I found in the area lighting every cave, tunnel, and gorge, killing all of the mobs I found and disabling all of the spawners I found. To try to reduce the other mobs spawning around my rooms.
My larger slime room is a 3 platform build located in the slime chunk from 0, -80 to 15, -65. The room starts at level 6 and has platforms rising up to level 18. I have spent an hour and a half waiting approximately 28 blocks above the room to have zero slimes spawn inside it. Each platform has a 3.5 block height to allow the slime to spawn and jump off the platform.
I jumped to a copy of the world in creative with cheats and used `/time set day` to prevent anything from spawning on the surface, then used `/kill @e` to kill everything in the area. Then I waited 8 minutes and used `/kill @e` again. Only one skeleton was killed so I definitely wasn't at the mob cap, but still zero slime spawned in that time with me 28 blocks above the farm.
Additionally I have a second slime farm that is just a simple large room inside the slime chunk from -33, -1 to -48, -16. This room is built on level 33. The room is 5+ blocks high in all areas. I have spent hours waiting for slimes to spawn in this room also and again have never seen a single slime. I even tried using the `/time set` command to progress the game to full moon phases hoping that would help but after waiting 10 full moon phases nothing spawned.
In addition I have camped out in three separate swamps for slimes on 4 full moons, and countless other nights and have only ever found 2 slimes in total in the swamps.
Swamp locations:
244, 510 (I found a big slime here)
-386, -890
-415, -1228 (I found a tiny slime here)
Seed: -14252882
My World: slime_chunk_test.mcworld
Related issues
duplicates
Comments


@gruva Thanks. I had considered that as well and spent a good amount of time today lighting the cave systems I could find in the area, killing every mob I found. I even built a second larger farm in a different chunk. I still don't have any slimes spawning. I updated my bug description and uploaded an updated version of my world to reflect the lite caves and larger farm location.
Thank you for your report!
However, this issue is a Duplicate of MCPE-29401.
If you have additional information, please add it to that report.
Please search before reporting, as it's likely that one exists already.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – 📖 Game Wiki
This is probably linked to https://bugs.mojang.com/browse/MCPE-21856 as I assume that slimes share the same mobcap as the other mobs. Have you tried lighting all the caves in the tick range to focus the spawns?