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Compressium Mod for Minecraft 1.20.1, 1.18.2

Adds Compressed Blocks

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Updated 17.10.2026

Compressium

Adding compressed blocks to the game since 2019

Got a double chest full of cobblestone? A mountain of sand taking up half your storage? Compressium solves that.

Compress any supported block into a denser, more compact form — up to 9 levels deep. Each compression level represents 9x the material of the last, so a single 9x compressed cobblestone block holds the equivalent of over 387 million cobblestone. Store more, haul less, lag less.

Compressed blocks are fully survival-friendly. Craft them in a 3x3 grid using the previous tier, and reverse the process at any time to get your materials back.

Compression Levels

Each block supports 9 tiers of compression:

Tier Equivalent Blocks

1x 9

2x 81

3x 729

4x 6,561

5x 59,049

6x 531,441

7x 4,782,969

8x 43,046,721

9x 387,420,489

Blocks

Stone

  • Stone
  • Cobblestone
  • Deepslate
  • Cobbled Deepslate
  • Gravel
  • Sand

Earth

  • Dirt
  • Clay

Minerals

  • Coal Block
  • Copper Block
  • Iron Block
  • Gold Block
  • Lapis Block
  • Redstone Block
  • Diamond Block
  • Emerald Block
  • Netherite Block

Nether

  • Netherrack
  • Quartz Block

End

  • End Stone

How to install Compressium

With Millida Launcher

  1. Install Millida Launcher

    The launcher is free: download it at millida.net/launcher and sign in with any nickname.

  2. Click “Install” on this page

    The launcher opens and installs the mod for Minecraft 1.18.2–26.2 on Forge or NeoForge automatically.

  3. Launch the game

    A profile with it appears in the launcher: click “Play”.

Manually

  1. Install Forge or NeoForge

    The loader must match the game version of the mod file, for example Minecraft 26.2. After installing it, a separate profile appears in your launcher.

  2. Download the file for your version

    In the version list above, pick the file compressium-26.2.0.jar (570 KB) for your game version and loader.

  3. Put it in the mods folder

    The folder is inside .minecraft (Windows: %appdata%\.minecraft\mods). If it does not exist, create it.

  4. Launch the loader profile

    Open “Mods” in the main menu: Compressium should be in the list.

Versions

With dependencies

MinecraftLoaderFileDateActions
26.2NeoForgecompressium-26.2.0.jar570 KB
1.20.1ForgeCompressium-3.0.2-build.12+mc1.20.jar684 KB
1.18.2ForgeCompressium-1.4.1-build.6+mc1.18.2.jar657 KB

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