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Underground BunkersMinecraft mod for 1.21.1

Randomly generated bunkers hidden within your worlds

server onlynewest supported release 1.21.1TechnologyAdventureWorldgen
Latest version
1.0.5
Loaders
NeoForge, Forge, Fabric
Licence
LicenseRef-All-Rights-Reserved
Downloads
533.1k
Updated
2 y ago
Available on
Modrinth
Space NodeOur hosting

Host Underground Bunkers servers

One click and Underground Bunkers is installed with the right loader, on hardware built for it.

  • 1.21.1
  • NeoForge
  • Forge
  • Fabric
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

Every version Underground Bunkers declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge, Forge, Fabric21+declared8 Aug 2024
1.21Fabric, NeoForge, Forge21+declared13 Jun 2024
1.20.6Forge, NeoForge, Fabric21+declared29 Apr 2024
1.20.5Forge, NeoForge, Fabric21+declared23 Apr 2024
1.20.4Forge, NeoForge, Fabric17+declared7 Dec 2023
1.20.3Fabric, Forge, NeoForge17+declared4 Dec 2023
1.20.2NeoForge, Forge, Fabric17+declared20 Sept 2023
1.20.1Fabric, NeoForge, Forge17+declared12 Jun 2023
1.20Fabric, NeoForge, Forge17+declared2 Jun 2023
1.19.4NeoForge, Forge, Fabric17+declared14 Mar 2023
1.19.3Fabric, NeoForge, Forge17+declared7 Dec 2022
1.19.2NeoForge, Forge, Fabric17+declared5 Aug 2022

Download

From Underground Bunkers’s own host. Nothing is re-hosted here.

For Minecraft 1.21.1

Choose the loader you use before downloading.

  • Fabric

    1.0.4 · 4 Sept 2024 · UndergroundBunkers-1.0.4-1.21.x-fabric.jar

    Get Fabric

Most recently published release

1.0.5release16 Sept 2024

UndergroundBunkers-1.0.5-1.20.x-forge.jar · 0.6 MB · for 1.20.6, 1.20.5, 1.20.4, 1.20.3, 1.20.2 +1 more · Forge

Download this release
946e4555ed1e…
Older versions3
  • 1.0.44 Sept 20241.21.1, 1.210.3 MB42.4k downloadsad370f28eaa2…Get
  • 1.0.323 Jan 20241.20.4, 1.20.3, 1.20.2, 1.20.1, 1.20 +3 more0.3 MB62.5k downloads7c03caf378fd…Get
  • 1.0.219 Jan 20241.20.4, 1.20.3, 1.20.2, 1.20.1, 1.20 +3 more0.5 MB399 downloadsa9a3c9124b83…Get

Frequently asked

Does Underground Bunkers work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Underground Bunkers declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does Underground Bunkers support?

Everything the author has declared, from 1.19.2 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Underground Bunkers on the client or the server?

The server only. Players join with an ordinary Minecraft client and install nothing.

Which platform or loader does Underground Bunkers support?

NeoForge, Forge, Fabric. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Underground Bunkers?

Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

What licence is Underground Bunkers under?

LicenseRef-All-Rights-Reserved, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install Underground Bunkers?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download Underground Bunkers safely?

Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

Details from Modrinth, where the author last updated it on 16 Sept 2024. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .