Minecraft - Tutorial: Practical Mob System

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Published 2012-08-07

This tutorial teaches you how to build my practical hostile mob system.

Pros: Compact, Easy, Quick, & Cheap to build. Doesn't cause block updates that would cause lag to your game. Works well in SMP.
Cons: Lower efficiency. Mobs are not forced off spawning pads so they may get stuck.

Mobs will not spawn within 24 blocks of your player.
Mobs will despawn if over 32 blocks from your player.
Mobs will go into sleep mode if over 32 blocks from your player.
Mobs will almost instantly despawn if over 128 blocks from your player.
Mobs can spawn in any loaded chunk in light levels 7 or less. Mobs are more likely to spawn in dark areas as they approach light level 0.

All Comments (21)

@ruegenthedragon 2 years ago

this mob system is timeless, goddamn. it works on every, single, version. from infdev until 1.18.2 you're freaking amazing, ethos.
@bnolsen 4 years ago

Just FYI this works fine in 1.15.2. Built this to keep up the rocket supply on our private server after we started getting elytra. For the pads use carpet, use trapdoors on the ceiling. instead of half slabs and in the middle use a single magma block with a hopper minecart underneath with a hopper below that into a chest. I built this into our strip mine at diamond level under the base and have 3 levels at the moment but it's easy to hollow out. Currently it's not producing tons of creepers but it's steady. It's likely there are still caves above it.
@mouseen92 10 years ago

FIX FOR NOT SPAWNING: The only thing I would add to this awesome video is, to start the build from a Y level of 200, that way the spawning system wont be effected by the mobs on the ground and in caves. This is the main problem people are having as well I had when I first built this mob spawner. Please if this is helpful thumbs up so others can see.
@MountainShade52992 10 years ago

2 years of playing and this has been the most effective/simple mob grinder. Thank you for this video.
@Runeterra_yt 9 years ago

If anyone is wondering about the resources I counted 722 Blocks for building and 12 Slabs.
@Nero0 10 years ago

I love snow blocks, watching this video just because it's so soothing, and pleasant on the eyes. <3
@thekoening 7 years ago

This is the very first video I watched and it's how I discovered your channel. I instantly liked your style and I'm subscribed ever since. I learned so much from you and even though I don't play Minecraft anymore myself, it's always fun to see you having a great time and coming up with crazy ideas.
@seanp4644 9 years ago

THIS IS GENIUS!!!! I am Deffinently putting this in my survival world as an xp farm as it seems to be pretty efficient
@Crazy_Diamond_75 9 years ago

Watching Zisteau set up a mob spawner in his new SSP series brought me here... This was the first Etho video I ever watched, now over 2 years ago. I can't believe it's been that long haha, and he's been Youtube-ing twice that! Anyway, thanks for the great vids Etho! :)
@kovaxim 9 years ago

I sure hope I will be able to make a functioning mob farm one day...
@RickHenderson 10 years ago

Awesome. This is probably one of the simplest mob spawners I've seen and I've been looking for one.
@obliteratedgamer4919 9 years ago

Thanks! It works great. I tried 4 different designs, and I'm mad this is the last one I tried. I only lit about 1/4 of my caves and its giving me around 10-15 stacks of gunpowder when I go AFK overnight.
@hellterminator 10 years ago

OK guys, it still works in the the newest versions of Minecraft. The only change is that you need to make the kill drop 30 blocks high instead of 24 because as of 1.7.2 witches will spawn in it and they have 13 hearts. If it's not working for you, there are some unlit places within 128 blocks of where you're AFKing.
@seanbarraclough279 8 years ago

Built today, 1.8.8. For an older and Redstone free farm, works well enough for my needs.
@ladyamerias 8 years ago

thank you Ethos! i have been looking for a simple but nice mob spawner. i just made this on my test world, and it works awesomely. i hate dealing with redstone! thanks again!
@avivfrai4858 5 years ago

here it is, the video that introduced me to minecraft. i don't know what my life would even look like today if i wouldn't have found this vid, so thanks.
@theAmazingJunkman 9 years ago

When I build this, I make the water streams 2 wide so the mobs flow out faster.
@Keeeyon7 7 years ago

close your eyes and listen. he sounds like bob ross
@travisvanderweyst4382 10 years ago

cool mob grind idea. might have to try this out. Thanks!
@grandpacheese5 10 years ago

THANK U ETHO! I've been waiting for u to do tutorials!! Thank u so much