MobXP

Mob XP

This mod allows setting a custom amount of xp that mobs will drop when killed. This includes being able to change the amount of xp the Ender Dragon drops on the first kill and subsequent kills.

Vanilla Minecraft had different xp amounts for some baby mob variants (e.g. Zombie babies), and chickens that had jockeys. So this mod also allows setting custom amounts for any baby mob variant and chickens with jockeys if wanting to do so.

Permission

Uses the permission mobxp.manageXP (or if the user is OPed / Singleplayer) to check if a user is allowed to edit the custom settings.

GUI

Starting with v1.1.3 there is an ingame GUI that can be used to modify the custom xp amounts and set the various flags. The default key for opening the GUI is the Keypad 5 when loaded in a world.

Configuration (v1.1.3 and above)

Starting with v1.1.3, all custom mob XP settings are stored as NBT data on a per-world basis.
This means each world maintains its own independent XP configuration.

File Location

The configuration file is named:

mob_xp_data.dat

and is stored in the world’s data directory.

Singleplayer worlds

.minecraft/saves/<WorldName>/data/mob_xp_data.dat

Dedicated / Integrated servers

<WorldName>/data/mob_xp_data.dat

NBT Data Structure

Each entry represents custom XP settings for a specific mob.

| Field | Description |
|——|————|
| id | Minecraft entity ID (e.g. minecraft:ender_dragon) |
| primaryXP | Base amount of XP dropped when the mob is killed |
| secondaryXP | Alternate XP value used for special conditions (e.g. chicken jockeys, non-first Ender Dragon kills) |
| babyXP | XP dropped when killing a baby variant of the mob |
| enabled | If true, custom XP values are used; if false, vanilla XP behavior is applied |
| random | If true, XP dropped will be a random value between 0 and the configured XP amount |
| usePrimaryXPForBaby | If true, baby mobs use primaryXP instead of babyXP |

Notes

• If usePrimaryXPForBaby is enabled, babyXP is ignored.
• If enabled is false, all other settings for that mob are ignored and vanilla XP is used.
• Any negative number entered for a xp amount will cause it not to be used and vanilla XP will be applied

Commands

View XP Configuration

/mobxp <entity_id>

Displays the current custom XP settings for the specified mob.

Example: /mobxp minecraft:ender_dragon

Modify XP Values

Set primary XP

/mobxp <entity_id> primaryXP <amount>

Example: /mobxp minecraft:ender_dragon primaryXP 12000

Set secondary XP

/mobxp <entity_id> secondaryXP <amount>

Example: /mobxp minecraft:ender_dragon secondaryXP 500

Set baby mob XP

/mobxp <entity_id> babyXP <amount>

Example: /mobxp minecraft:zombie babyXP 100

Toggle Flags

Enable or disable custom XP

/mobxp <entity_id> enabled <true|false>

Example: /mobxp minecraft:sheep enabled true

Enable random XP drops

/mobxp <entity_id> random <true|false>

Example: /mobxp minecraft:warden random true

Use adult XP for baby mobs

/mobxp <entity_id> usePrimaryXPForBaby <true|false>

Example: /mobxp minecraft:zoglin usePrimaryXPForBaby true

Configuration Pre 1.1.3

On first run config file will be generated in config/mobxp.json.

• Find the mob identifier for the mob
• Set the “experiencePoints” to the xp you want for that mob
• Enable it by setting “enabled” to true
• Set “random” to true if you want the xp amount to randomize between 1 and “experiencePoints”

Example config

• Sets Ender Dragon xp drops to 15,000 for both first kill and all other kills
• Sets Villager xp drops to 1,000

{
  "dragonXP": 15000,
  "firstDragonXP": 15000,

  "xp": {
    "minecraft:villager": {
      "enabled": true,
      "experiencePoints": 1000,
      "random": false
    }
  }
}