
Minecraft But Chests Are In Quantum Superposition
This datapack introduces quantum mechanics to the Minecraft loot system. Based on the concept of Schrödinger's Cat.
⬇ Download on Modrinth
Minecraft But Chests Are In Quantum Superposition
Overview
This datapack introduces quantum mechanics to the Minecraft loot system. Based on the concept of Schrödinger's Cat, chests in your world no longer contain fixed items. Instead, they exist in a state of "superposition" until a player observes them.
When you open a chest, the waveform collapses, and the universe decides your fate. You might find god-tier loot, or you might trigger a trap. Every chest is a risk.
The Quantum Outcomes
Every time you open a chest, one of four states is randomly selected:
Treasure State (40% Chance)
The ideal outcome. The chest collapses into a stable state containing valuable resources like Diamonds, Emeralds, Netherite Ingots, and Enchanted Golden Apples.
Mysterious State (30% Chance)
A volatile outcome containing rare and magical items. Expect to find Ender Pearls, Echo Shards, high-level Enchanted Books, and Nether Stars.
Empty State (15% Chance)
The "Observation Paradox." Upon opening the chest, reality determines that nothing was ever there to begin with. The chest is completely empty.
Trap State (15% Chance)
A critical failure in the quantum state. The chest manifests volatile explosives including TNT, Gunpowder, and Fire Charges. Be ready to run.
Key Features
- Version Compatibility: Native support for Minecraft Java Edition 1.21.4.
- Exploit Protection: Includes an NBT-based tracking system to prevent players from breaking and replacing chests to re-roll loot. Once a chest's state has collapsed, it remains fixed.
- Multiplayer Ready: Fully functional on servers and LAN worlds.
- Visual & Audio Feedback: Each state is accompanied by unique particle effects and sound cues to indicate which timeline you have triggered.
Installation Instructions
- Download the
.zipfile. - Navigate to your Minecraft saves folder:
.minecraft/saves/YourWorld/datapacks - Place the downloaded zip file into the datapacks folder.
- Launch Minecraft and enter your world.
- Type
/reloadin the chat to initialize the quantum physics engine.
Permissions
You are free to use this datapack in YouTube videos or streams. Please credit the project page if you do.
Observation changes reality. Good luck.
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.9, 1.21.10
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — see the MC Java Mods guides for the full walkthrough.
- Downloads as Minecraft_But_Quantum_Loot.zip
- Download size: 49 KB
- Download link checked 14 Sept 2026 — working
These come from our own check of the pack file, not from the source page.