Building Mining Mobs

Building Mining Mobs

Mod that allows monsters to break and place blocks to get to the player

by
313 Downloads
fabric
Rent Server with this Mod

About this Mod

Official BMM Anarchy Server is now live!

ip: bmm.pyro.social

Players do not need mods to join this server

Feel free to test out the mod, and play the server to your hearts content!

Mod features:

Certain monsters (the bipedal ones) can now break blocks to get to you.
Creepers will blow up next to strategic obstructions between you and them if they can’t reach you themselves. Also, their hiss is removed.
Zombies, which can pick up blocks, can now place those blocks to get closer to you.
Custom Targeting Mechanism: mobs can now see and target you from up to 200 blocks away (50 behind glass) if you go within eyesight of them for over 2 seconds. Be careful peeking over your wall into the darkness, the darkness might stare back.
Within 40 blocks, mobs can hear you and will target you unless you’re crouching.
Many may not know this, but spiders were originally designed to outrun the player. Despite being an absolutely inescapable menace before sprinting was added to the game, they were never adapted for a post-sprinting world. In order to be true to Notch's vision, spider speed has been drastically increased.

The wildcard:

5% chance of a Bloodmoon happening in a night (+full moons so maybe a bit more than 5%), which will have all mobs in the area constantly know where you are, while rendering you unable to sleep and skip the night. This will be when your defenses are absolutely put to the test.

This mod is powered by Mobitone, which is a custom version of Baritone specifically modified by this mod creator for use with mobs.

Note: When the server mod is installed, no client mods are needed. Players on the server can play this mod in vanilla.

You must put the following files in your fabric mods folder to play this mod:

Config commands

/allowBreak <true/false>

-Toggle whether mobs can break blocks

/allowPlace <true/false>

-Toggle whether Zombies can place blocks

/creepersExplodeObstructions <true/false>

-Toggle whether creepers explode strategic obstructions to reach the player.

/raidersBreakBlocks <true/false>

-Toggle whether raiders break blocks

/skeletonsBreakBlocks <true/false>

-Toggle whether Skeletons break blocks

/witchesBreakBlocks <true/false>

-Toggle whether or not witches break blocks

/zombiesBreakAndPlaceBlocks <true/false>

-Toggle whether Zombies break and place blocks

/mobBlockBreakAdditionalPenaltyCommand

-Baritone cost command. Set to 2 by default

/mobBlockPlacementPenalty

-Baritone cost command. Set to 3 by default

/mobJumpPenalty

Baritone cost command. set to 2 by default

/infiniteZombieBlocks <true/false>

-When true, dirt, stone, cobblestone, deepslate, and cobbled deepslate blocks do not decrement in a zombies hand when placed by them. True by default, true recommended.

 /mobBlockBreakSpeed

Set the Speed at which mobs break blocks. Set to 1 by default.

/optimizedMobitone <true/false>

Determines whether mobs always have a Mobitone instance, or whether they only have one when targeting and path finding to a player or target entity. Reduces server lag. True by default.

(Multiplayer Only) /enforceTrueDarknessMod <true/false>

-Toggle whether the server kicks players who don't have the true darkness mod (recommended alongside this mod) downloadable here. 
(Enforced true darkness will return)

Set to false by default.

(Singleplayer only) /renderMobPathing <true/false>

-Toggle whether the mobs pathing is rendered. Set to false by default.

 /infiniteZombieBlocks <true/false>

-When true, dirt, stone, cobblestone, deepslate, and cobbled deepslate blocks do not decrement in a zombies hand when placed by them. True by default, true recommended.

/mobBlockBreakSpeed  

-Determines the mob block break speed. Set to 1 by default.

(Coming soon) /zombiesSpawnWithBlocks <true/false>

  • Toggle whether or not the zombies have a 1/3rd chance of spawning with up to 16 blocks (dirt, cobble, sand in desert, stone), they don't drop said blocks when spawned with them. True by default.

/bloodmoonSpawnRatePercentageCommand

-Determines the speed at which mobs spawn during bloodmoons. 1 being max/machine gun spawns. Set to 0.0001 by default.

/bloodmoonChancePercentageCommand <Double?

-Sets the chance of a bloodmoon occuring in a night (note: the chance will be a bit higher than this as bloodmoons are also triggered by full moons). Set to 0.05 by default.

/daysBeforeBloodmoonPossibility sets the number of days before a bloodmoon can occur in a world.]

Set to 3 by default meaning there will be no bloodmoons before day 3.

/buildingMiningMobsDuringBloodmoonOnly <true/false>

-Determines whether mobs can always build and mine, or only during bloodmoon events. Set to false by default.

/creeperHiss <true/false>

-Determines whether or not creepers make a hiss sound. Set to false by default.

/spiderSpeed <true/false>

-Determines whether or not spiders have enhanced speed. Set to true by default.

Available Versions

Building Mining Mobs 1.21.10release
MC 1.21.10fabric
December 3, 2025
Building Mining Mobs 1.21.8release
MC 1.21.8fabric
December 3, 2025

How to Install Building Mining Mobs on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.10).

3

Install Mod

Open the mod browser in the dashboard and search for "Building Mining Mobs". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.10, 1.21.8

Server-side

Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Building Mining Mobs server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.10). You can switch loaders with one click in the panel.

Is Building Mining Mobs compatible with fabric?

Building Mining Mobs officially supports fabric for Minecraft 1.21.10, 1.21.8. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Building Mining Mobs – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Building Mining Mobs consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.

Rent Modded Server

Install Building Mining Mobs with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
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NVMe SSD Storage
DDoS Protection included

Details

License
Apache License 2.0
Server-side
Unsupported

Supported Versions

1.21.101.21.8