Loot Modifier

Add new pools to existing loot tables

158 Downloads

fabriclibrary

Rent Server with this Mod

About this Mod

Loot Modifier

A mod to allow datapacks to modify existing loot tables

Loot table modifiers should be defined in data//lootmodifier/loot_table_modifier/.json

JSON Format

target: A loot table identifier, or list of loot table identifiers, to modify.

pools: A list of pools to add to the loot tables. Uses vanilla loot pool format.

Example

Gives dirt and grass blocks a 10% chance to drop a diamond when mined

{
  "target": [
    "minecraft:blocks/dirt",
    "minecraft:blocks/grass_block"
  ],
  "pools": [
    {
      "conditions": [
        {
          "condition": "minecraft:random_chance",
          "chance": 0.1
        }
      ],
      "entries": [
        {
          "type": "minecraft:item",
          "name": "minecraft:diamond"
        }
      ],
      "rolls": 1.0
    }
  ]
}

Available Versions

Loot Modifier 1.0.1release

MC 1.21.8fabric

September 21, 2025

Loot Modifier 1.0.0release

MC 1.21.5fabric

April 29, 2025

How to Install Loot Modifier on Your Server

Order Server

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

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.8).

Install Mod

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

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.8, 1.21.5

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Loot Modifier 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 (1.21.8). You can switch loaders with one click in the panel.

Is Loot Modifier compatible with fabric?

Loot Modifier officially supports fabric for Minecraft 1.21.8, 1.21.5. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Loot Modifier – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Loot Modifier 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.