I am playing on a vanilla 1.14.3 smp server. At first, hostile mob spawns seemed normal; they would spawn out in the open during nights because I haven't lit up a whole lot of my island. Now they just downright won't spawn on the surface, even after I've lit up virtually every cave under my island. Most of the time I am the only one online, so it can't be that they are spawning near other players. Why are hostile mobs not spawning? Is the spawning broken somehow? The server is on easy, but as far as I know, as long as it's not on peaceful, the difficulty shouldn't affect standard mob spawning.

More details here (steps taken, screenshot, etc.): https://www.reddit.com/r/Minecraft/comments/ck40sc/hostile_mobs_not_spawning/Here's one of my afk spots. Mobs won't spawn if I wait up here either.

I waited two Minecraft nights here and only got one spider. Oddly enough if I go to a friend's house several hundred blocks away (when he's online, but I'm not sure if him being online/offline matters here) mobs spawn at night normally.

Edit: my friend got off and I went to another area off my island and mobs seemed to spawn normally on the surface at night. It doesn't make sense to me that mobs won't spawn on my island because I lit up all the caves, so more should spawn on the surface at night instead.

  • Maybe a lot of mobs are somewhere else already, for example near a different player or in the spawn chunks. Try going to the spawn chunks, leave and rejoin. And are other players online? – Fabian Röling Jul 31 '19 at 11:43
  • Did someone do /gamerule doMobSpawning false – Asadefa Jul 31 '19 at 16:42
  • is it night? mobs can only spawn in dark places – Asadefa Jul 31 '19 at 16:45
  • @FabianRöling I have said "Most of the time I am the only one online, so it can't be that they are spawning near other players." – VolTorian Jul 31 '19 at 18:33
  • @Asadefa no, I still get the occasional mob spawn every now and then. Also the Reddit post has a screenshot of mobs not spawning at night. I think from my question here that it should be clear that I know they need darkness to spawn. – VolTorian Jul 31 '19 at 18:35

I've had the same problem that you're describing and from what I've found it's to do with the movement of the player (or lack of) that seems to prevent the mobs from spawning. I had the same issue where I could stand at the bottom where the mobs should be falling and I could leave it overnight and NOTHING would spawn. As soon as I ran up to the top of the tower and back down, oh look, there's 8 or so creepers falling to their death.

To fix your problem and allow you to AFK, build a powered rail that goes up to the top of your tower and then back down that just loops. You should find that mobs start to spawn once you start moving around!

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