Random Mob Sizes

Random Mob Sizes

Random all the mob sizes in your world. (You can configure it as you want) [Optimized + Compatibility]

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23.0K Downloads
datapackfabricforgeneoforgequiltadventurecursedmobs
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Screenshots

Promotional Image
Image showing some mobs with differents sizes

About this Mod

Random Mob Sizes

GitHub
Smithed
Modrinth
PMC
Discord
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This datapack provides a funny game experience by randomizing every mob sizes in your world! 🎲 🎮

The default scale is 0.75-1.25 but can be configured as you want with the command /function random_mob_sizes:config ⚙️

The datapack is optimized, meaning it do not add any lag to your world/server! ⚡️

You can also configure per-mob behavior to fine‑tune size ranges and health scaling for specific entities. 🎯

Configuration ⚙️

Run the helper command to configure the pack:

  • ▶️ Execute /function random_mob_sizes:config
  • 💬 This prints clickable messages in chat that prefill commands you can edit and send.

What you can configure (from the in-game helper):

  • 📏 Value range for sizes: 0.0625 – 16.0
  • 🌐 Default global range: min_size = 0.75, max_size = 1.25
  • ❤️ Health scaling toggle: whether mob health scales with their size (enabled by default)
  • 🏃 Speed scaling toggle: whether mob movement speed scales with their size (disabled by default)
  • ⚔️ Damage scaling toggle: whether mob attack damage scales with their size (disabled by default)

Global settings examples 🛠️:

  • ➖📏 Set minimum size
    • /data modify storage random_mob_sizes:config min_size set value 0.75
  • ➕📏 Set maximum size
    • /data modify storage random_mob_sizes:config max_size set value 1.25
  • 🔁❤️ Enable/disable health scaling
    • /data modify storage random_mob_sizes:config health_scale set value false
    • Use true to enable, false to disable.
  • 🔁🏃 Enable/disable speed scaling
    • /data modify storage random_mob_sizes:config speed_scale set value true
    • Use true to enable, false to disable.
  • 🔁⚔️ Enable/disable damage scaling
    • /data modify storage random_mob_sizes:config damage_scale set value true
    • Use true to enable, false to disable.

Per-mob overrides (optional) 🐾:

  • 🧬 You can override the global settings for a specific mob type. Provide any subset of keys; omitted keys fall back to the global values.
  • 🐔 Example for chickens:
    • /data modify storage random_mob_sizes:config mobs."minecraft:chicken" set value {min_size:0.75,max_size:1.25,health_scale:true,speed_scale:false,damage_scale:false}
  • 🔁 Replace minecraft:chicken with the desired entity ID (e.g., minecraft:zombie).

💡 Tip: You can re-run /function random_mob_sizes:config at any time to show the clickable helpers again.

Technical / Compatibility 🔧

Mobs concerned by the datapack are:

  • mobs with a "Brain" NBT 🧠
  • not players 👤
  • not armor stands 🛡️
  • not entities having the following Tags: random_mob_sizes.checked, smithed.entity, smithed.strict, global.ignore 🏷️

Meaning modded mobs can be concerned! 🎯

If you want to revert all loaded entities to their original size, you can type /execute as @e run attribute @s scale base reset.

Promotional image

Random Mob Sizes Image

⭐ Star History

Star History Chart

Available Versions

RandomMobSizes [v1.3.4+quilt]release
MC 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11, 26.1, 26.1.1, 26.1.2quilt
April 11, 2026
RandomMobSizes [v1.3.4+neoforge]release
MC 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11, 26.1, 26.1.1, 26.1.2neoforge
April 11, 2026
RandomMobSizes [v1.3.4+forge]release
MC 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11, 26.1, 26.1.1, 26.1.2forge
April 11, 2026
RandomMobSizes [v1.3.4+fabric]release
MC 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11, 26.1, 26.1.1, 26.1.2fabric
April 11, 2026
RandomMobSizes [v1.3.4]release
MC 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11, 26.1, 26.1.1, 26.1.2datapack
April 11, 2026

How to Install Random Mob Sizes on Your Server

1

Order Server

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

2

Set datapack Loader

In the panel under "Egg", select the datapack loader and matching Minecraft version (26.1.2).

3

Install Mod

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

Compatibility

Mod Loaders

datapackfabricforgeneoforgequilt

Minecraft Versions

26.1.2, 26.1.1, 26.1 (+19 more)

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Random Mob Sizes server crashes on startup – what to do?

Most common cause: wrong datapack 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 (26.1.2). You can switch loaders with one click in the panel.

Is Random Mob Sizes compatible with datapack and fabric and forge and neoforge and quilt?

Random Mob Sizes officially supports datapack, fabric, forge, neoforge, quilt for Minecraft 26.1.2, 26.1.1, 26.1. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Random Mob Sizes – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Random Mob Sizes 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 Random Mob Sizes with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
MIT License
Server-side
Required

Supported Versions

26.1.226.1.126.11.21.1125w45a25w44a25w43a25w42a25w41a1.21.10+12 more