LabsCases

Each case is defined in a JSON file. A case has a name, a color and a list of items, and every item carries an item ID, a minimum and maximum drop count, a weight and a description. Weights set how likely an item is to drop relative to the others, so a higher weight means a more frequent drop and a lower weight means a rarer one. Drop counts are integers, and the actual amount rolled within the range can depend on luck.

The mod is meant for servers, modpacks and single-player games that want case-based rewards instead of predictable loot. It works with other mods that register items, and item IDs can be looked up in game with CraftTweaker installed. After a new case is created, the JSON file is opened and the example configuration can be pasted in and edited. Adding a new case requires a full restart of Minecraft. LabsCases runs server-side only, so players join without installing it, and it is published for Forge 1.20.1 as a single build dated 2026-02-07. The code is under All rights reserved and is not open source.