Colossal Chests

⭐ — (78 endorsements) 📥 67,716 downloads 📌 v1.21.1-1.9.0 📅 6/5/2022
🟡 Updated this year

By rubensworks · fabric

⬇ Download Mod Source: Modrinth ↗ 📅 Updated: 8/27/2026 📅 Created: 6/5/2022
⚠️ Install Order · 2 steps
1🛠️ Forge — Minecraft Forge (mod loader) Download ↗
2🛠️ Fabric — Fabric Loader Download ↗

Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.

🔍 Analysis

  • 👍 0.1% endorsement rate
  • 🏆 #258 of 983 fabric mods in this game by downloads

📋 About This Mod

<center><strong>This mod requires the <a href="https://modrinth.com/mod/cyclops-core" rel="nofollow">Cyclops Core</a>&nbsp;library!</strong></center> <center><strong>Come talk to us in #colossalchests on the <a href="https://discord.gg/9yDxubB">Cyclops Discord server</a>!</strong></p> <p>&nbsp;</center> <p>Sometimes, regular chests are just too small, this mod allows you to create multiblock chests of any size. (The maximum size can be changed in the config file)</p> <p>&nbsp;</p> <p><img src="https://media.forgecdn.net/attachments/28/523/2015-11-11_16.png" width="854" height="480" /></p> <p>&nbsp;</p> <p>&nbsp;</p> <p><strong>Mod Spotlights:</strong></p> <p><strong><iframe allowfullscreen="allowfullscreen" src="https://www.youtube.com/embed/qn1sBAVAbZo?wmode=transparent" height="358" width="638"></iframe></strong></p> <p>&nbsp;</p> <p>To build these chests, you will need multiple Colossal Chest Wall blocks and exactly one Colossal Chest Core block.</p> <p>This Core block will contain the actual items of the&nbsp;multiblock, so break that one, and all items will&nbsp;pop out.</p> <p>&nbsp;</p> <p><img src="https://media.forgecdn.net/attachments/842/396/screenshot-2024-04-08-at-17.png" width="540" height="230" /></p> <p><img src="https://media.forgecdn.net/attachments/28/525/schermafbeelding-2015-11-11-om-16.png" width="536" height="228" /></p> <p>&nbsp;</p> <p>Your structure must&nbsp;be cubic, each side must have an equal length. The minimum size of the structure is two blocks.</p> <p>The structure must be made up of Chest Wall's, exactly one&nbsp;Colossal Chest Core block must be present in the structure.</p> <p>Once your structure is valid, the multiblock will be formed visually.</p> <p>&nbsp;</p> <p><img src="https://media.forgecdn.net/attachments/28/526/2015-11-11_16.png" width="854" height="480" /></p> <p>&nbsp;</p> <p>You must only build the actual walls of the structure, leave the inside of the structure hollow.</p> <p>&nbsp;</p> <p><img src="https://media.forgecdn.net/attachments/28/527/2015-11-11_16.png" width="854" height="480" /></p> <p>&nbsp;</p> <p>You can&nbsp;attach hoppers and pipes to the chest at the position of the Colossal Chest Core block.</p> <p>&nbsp;</p> <p><img src="https://media.forgecdn.net/attachments/28/528/2015-11-11_16.png" width="854" height="480" /></p> <p>&nbsp;</p> <p>Obviously, you can also open a gui to manage the inventory of the chest yourself.</p> <p>&nbsp;</p> <p><img src="https://media.forgecdn.net/attachments/29/339/2015-12-04_20.png" width="854" height="480" /></p> <p>&nbsp;</p> <p>Optionally, you can add any number of Colossal Chest Interface blocks to your structure to make those spots interfacable with hoppers and pipes.</p> <p>&nbsp;</p> <p><img src="http://imgur.com/SjpZoU9.png" alt="" width="530" height="230" /></p> <p><img src="http://imgur.com/z3SdXt4.png" alt="" width="854" height="480" /></p> <p>&nbsp;</p> <p>Next to the wood chests, variants for all types of metals (<em>including obsidian</em>) also exist, just like with the Iron Chest mod.<br />When the Iron Chest mod is detected, those chest textures are used, otherwise the internal textures are used (this can be disabled).</p> <p>If you have enough with wooden chests, these metal variants can be disabled easily.</p> <p>&nbsp;</p> <p><img src="https://media.forgecdn.net/attachments/29/336/ironchests.png" width="512" height="300" /></p> <p>&nbsp;</p> <p><img src="https://media.forgecdn.net/attachments/209/996/2017-05-26_10.png" width="690" height="388" /></p> <p><strong>The Obsidian Colossal Chest is an upgraded version of the Diamon Colossal Chest, which has the same content size, but can not explode.</strong> The wall can be crafted by surrounding a diamond chest wall with eight obsidian blocks in a crafting grid.</p> <p>&nbsp;</p> <p><img src="https://media.forgecdn.net/attachments/209/997/schermafbeelding-2017-05-26-om-10.png" width="530" height="230" /></p> <p><img src="https://media.forgecdn.net/attachments/209/998/schermafbeelding-2017-05-26-om-10.png" width="510" height="230" /></p> <p><strong>The Upgrade and Downgrade tools can be used to up/downgrade a chest to the next/previous tier without having to break and replace all blocks.</strong> This requires you to have all required blocks of a&nbsp;next/previous tier in your inventory, and this tool will automatically replace the chest with the corresponding material, while maintaining its&nbsp;inventory.<br />Note that the Downgrade&nbsp;tool can make inventories smaller, so items may pop out if your inventory becomes too small for the new material.</p> <p>&nbsp;</p> <p>If you are having trouble with your chest not forming, you can right-click with an empty hand on the incomplete structure to see why it won't form.</p> <p>&nbsp;</p> <p><img src="https://media.forgecdn.net/attachments/29/337/2015-11-28_19.png" width="854" height="480" /></p> <p>&nbsp;</p> <p>Formula for&nbsp;number of slots = ceil((diameter ^ 3) * 27 * material_factor)<br />Mate

This mod requires the Cyclops Core library!
Come talk to us in #colossalchests on the Cyclops Discord server!

 

Sometimes, regular chests are just too small, this mod allows you to create multiblock chests of any size. (The maximum size can be changed in the config file)

 

 

 

Mod Spotlights:

 

To build these chests, you will need multiple Colossal Chest Wall blocks and exactly one Colossal Chest Core block.

This Core block will contain the actual items of the multiblock, so break that one, and all items will pop out.

 

 

Your structure must be cubic, each side must have an equal length. The minimum size of the structure is two blocks.

The structure must be made up of Chest Wall's, exactly one Colossal Chest Core block must be present in the structure.

Once your structure is valid, the multiblock will be formed visually.

 

 

You must only build the actual walls of the structure, leave the inside of the structure hollow.

 

 

You can attach hoppers and pipes to the chest at the position of the Colossal Chest Core block.

 

 

Obviously, you can also open a gui to manage the inventory of the chest yourself.

 

 

Optionally, you can add any number of Colossal Chest Interface blocks to your structure to make those spots interfacable with hoppers and pipes.

 

 

Next to the wood chests, variants for all types of metals (including obsidian) also exist, just like with the Iron Chest mod. When the Iron Chest mod is detected, those chest textures are used, otherwise the internal textures are used (this can be disabled).

If you have enough with wooden chests, these metal variants can be disabled easily.

 

 

The Obsidian Colossal Chest is an upgraded version of the Diamon Colossal Chest, which has the same content size, but can not explode. The wall can be crafted by surrounding a diamond chest wall with eight obsidian blocks in a crafting grid.

 

The Upgrade and Downgrade tools can be used to up/downgrade a chest to the next/previous tier without having to break and replace all blocks. This requires you to have all required blocks of a next/previous tier in your inventory, and this tool will automatically replace the chest with the corresponding material, while maintaining its inventory. Note that the Downgrade tool can make inventories smaller, so items may pop out if your inventory becomes too small for the new material.

 

If you are having trouble with your chest not forming, you can right-click with an empty hand on the incomplete structure to see why it won't form.

 

 

Formula for number of slots = ceil((diameter ^ 3) 27 material_factor) Mate

🤖 AI-enhanced — based on mod data

📊 Mod Details

Game
Minecraft Mods
Author
rubensworks
Version
1.21.1-1.9.0
Downloads
67,716
Endorsements
78
Category
fabric
Created
6/5/2022
Updated
8/27/2026
Game Versions
1.21.1
Tags
storage

🔧 How to Install Minecraft Mods Mods

Download from Modrinth. Use Prism Launcher or drop into your mods folder.

📖 Full step-by-step install guide for Minecraft Mods →

Visit the official mod page for specific installation instructions for this mod.

🎮 Need cheat codes or console commands? Check ur gaming wiki for Minecraft Mods commands, item IDs, and more.

❓ Frequently Asked Questions

Which Minecraft Mods versions does Colossal Chests support?

The author lists 1.21.1. Other versions may work but are untested by the author.

What is the latest version of Colossal Chests?

Version 1.21.1-1.9.0, published 2026-08-27 with 67,716 downloads recorded at the source.

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