Lootr — a Minecraft mod

Lootr — a Minecraft mod 

• Minecraft version: 26.1.2

• Loader: Fabric

• Mod version: 1.22.36.109

• Dependencies: Fabric API
  

The mod solves a specific problem on multiplayer servers: one of the players reaches a dungeon first and loots the chest completely — leaving the rest with nothing. The mod reworks chests from structures into personal storage: each player opens and takes their own copy of the loot, independently of the others. 

How the mod works 

Lootr intercepts all loot containers and converts them into its own block type. The chest looks different on the outside: before it is opened it is gold-colored, and after it is opened it turns gray. This lets you tell at a glance whether a chest has already been opened.

After a chest is opened, the mod generates loot personally for the player. Anyone else who opens the same chest will see their own set of items — regardless of what the first player took. The loot is generated from the same vanilla loot table: Lootr does not change the contents of the chests, it only isolates the inventory for each player.

a Lootr chest before opening 

Supported containers

The mod converts:

• Regular chests (minecraft:chest)

• Trapped chests (minecraft:trapped_chest)

• Barrels (minecraft:barrel)

• Shulker boxes (minecraft:shulker_box)

• Chest minecarts in abandoned mineshafts (minecraft:chest_minecart)
  

a Lootr chest after opening 

Decay and Refresh — two additional modes 

In addition to the basic personalization, the mod supports two opposite mechanisms for chests: 

• Decay — once at least one player has opened a chest, it starts a countdown. The next player who tries to open it after the time runs out will get a destroyed block instead of loot. 

• Refresh — the opposite mechanic: after being opened, the chest restores its contents after a set interval. Useful for servers where players want to farm specific resources repeatedly. 

Both modes can be activated through lootr-common.jsonc: "refresh_all": true enables refresh for all containers, and "decay_all": true enables decay. 

a decay demonstration  

The /lootr command 

The mod adds the /lootr command, available with operator permissions. 

Command table

various containers spawned with /lootr before opening 

Configuration 

The config is split into two files: lootr-common.jsonc — server settings, and lootr-client.jsonc — client settings. Most parameters have default values and do not need to be changed for basic use. 

Compatibility 

The mod must be installed on both the client and the server at the same time.

Chests from third-party mods are only converted if they use loot tables. If a mod generates contents manually in code, Lootr skips such a container.

Conclusion 

Lootr solves exactly one task — it eliminates competition over loot in multiplayer — and does not go beyond it. Personalized loot gives players an incentive to explore already-opened chunks instead of generating new ones, which reduces the world size on active servers.

The mod does not change the contents of loot tables. If the problem is that chests drop too little or the wrong items — Lootr will not fix that.