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CoreDefenseMinecraft mod for 1.21.1

Defend your core from endless waves of enemies by building defenses, expanding your territory, and unlocking new areas. Protect, survive, and thrive!

client and servernewest supported release 1.21.1AdventureMobsGame MechanicsMagic
Latest version
1.6__1.20.1
Minecraft
1.19.2 to 1.21.1
Java
Java 21+
Loader
Fabric
Licence
MIT
Downloads
1.3k
Updated
21 mo ago
Available on
Modrinth
Space NodeOur hosting

Host CoreDefense servers

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

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

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

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

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1Fabric21+declared8 Aug 2024
1.21Fabric21+declared13 Jun 2024
1.20.1Fabric17+declared12 Jun 2023
1.19.2Fabric17+declared5 Aug 2022

Download

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

For Minecraft 1.21.1

Choose the loader you use before downloading.

  • Fabric

    1.5__1.21 · 28 Jan 2025 · core-defense-1.5__1.21.jar

    Get Fabric

Most recently published release

1.6__1.20.1release30 Jan 2025

core-defense-1.6__1.20.1.jar · 0.2 MB · for 1.20.1 · Fabric

Download this release
65550e5fb757…
Older versions15
  • 1.5__1.20.128 Jan 20251.20.10.2 MB46 downloadse307e6975ba7…Get
  • 1.5__1.2128 Jan 20251.21.1, 1.210.2 MB210 downloads0e11c91187e6…Get
  • 1.4__1.19.226 Jan 20251.19.20.2 MB55 downloads9398ab4205f6…Get
  • 1.4__1.20.126 Jan 20251.20.10.2 MB41 downloadsbd945c94e7ab…Get
  • 1.4__1.2126 Jan 20251.21.1, 1.210.2 MB40 downloadsb44aa1a168de…Get
  • 1.3__1.19.224 Jan 20251.19.20.2 MB35 downloads674806c8769c…Get
  • 1.3__1.20.124 Jan 20251.20.10.2 MB48 downloads13442546711f…Get
  • 1.3__1.2123 Jan 20251.21.1, 1.210.2 MB50 downloads2588d2a7f68f…Get
  • 1.2__1.19.223 Jan 20251.19.20.2 MB37 downloads19b7330c86ae…Get
  • 1.2__1.20.122 Jan 20251.20.10.2 MB37 downloads1205462950f8…Get
  • 1.2__1.2122 Jan 20251.21.1, 1.210.2 MB227 downloads1adae957394f…Get
  • 1.11__1.20.120 Jan 20251.20.10.2 MB35 downloads83e97921ed3b…Get
  • 1.1_1.20.118 Jan 20251.20.10.2 MB40 downloads1adbb410f4c2…Get
  • 1.1_1.21.15 Jan 20251.21.1, 1.210.2 MB48 downloads77a9c355797d…Get
  • 1.0_1.212 Jan 20251.210.2 MB47 downloads33f0a6717e11…Get

Frequently asked

Does CoreDefense work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version CoreDefense 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 CoreDefense 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 CoreDefense on the client or the server?

Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.

Which platform or loader does CoreDefense support?

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 CoreDefense?

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 CoreDefense under?

MIT, 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 CoreDefense?

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 CoreDefense 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.

BookshelfAn open source library for other mods!GeckoLibA 3D animation library for entities, blocks, items, armor, and more!Cloth Config API (Fabric/Forge/NeoForge)Config Screen API for MinecraftJourneyMapReal-time map used for mapping in-game or your browser as you explore.Architectury APIAn intermediary api aimed to ease developing multiplatform mods.Jade 🔍Shows information about what you are looking at. (Hwyla/WAILA fork for Minecraft 1.16+)

Details from Modrinth, where the author last updated it on 30 Jan 2025. 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? .