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Mars's Fallout ExpansionMinecraft mod for 1.20.1

This project adds mobs, blocks, items, and mechanics seen in and inspired by the Fallout Universe.

client and servernewest supported release 1.20.1AdventureMobsEquipmentDecoration
Latest version
0.7.1
Minecraft
1.20.1
Loader
Forge
Licence
LicenseRef-All-Rights-Reserved
Downloads
298
Updated
4 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Mars's Fallout Expansion servers

One click and Mars's Fallout Expansion is installed with the right loader, on hardware built for it.

  • 1.20.1
  • Forge
  • 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 Mars's Fallout Expansion declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.20.1Forge17+declared12 Jun 2023

Download

From Mars's Fallout Expansion’s own host. Nothing is re-hosted here.

Most recently published release

0.7.1release4 Jul 2026

marsfalloutexpansion-0.7.1.jar · 3.3 MB · for 1.20.1 · Forge

Download this release
ba93af920a97…
Older versions12
  • 0.73 Jul 20261.20.13.2 MB6 downloadsd522fba2cd4e…Get
  • 0.64 Jun 20261.20.12.2 MB32 downloads9f6eac72162b…Get
  • 0.5.221 May 20261.20.11.8 MB21 downloadsb496ffabab34…Get
  • 0.5.18 Apr 20261.20.11.8 MB39 downloadsd01e8493ab73…Get
  • 0.56 Apr 20261.20.11.8 MB16 downloads0ed050d5d70c…Get
  • 0.4.222 Mar 20261.20.11.4 MB27 downloads0f4293cbf925…Get
  • 0.4.121 Mar 20261.20.11.4 MB13 downloadsdd19d59cb80e…Get
  • 0.419 Mar 20261.20.11.3 MB18 downloadsc9ecabef224b…Get
  • 0.3.18 Mar 20261.20.10.9 MB22 downloads3aca636eb432…Get
  • 0.38 Mar 20261.20.10.9 MB14 downloads6ad83cac2284…Get
  • 0.219 Feb 20261.20.10.7 MB33 downloads6a743db9afff…Get
  • 0.128 Jan 20261.20.10.5 MB45 downloads8d4a5a0f7942…Get

Frequently asked

Does Mars's Fallout Expansion work on Minecraft 1.20.1?

Yes. 1.20.1 is the newest Minecraft version Mars's Fallout Expansion declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Do I need to install Mars's Fallout Expansion 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 Mars's Fallout Expansion support?

Forge. 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 Mars's Fallout Expansion?

Among the supported Minecraft releases above, the highest recorded requirement is Java 17 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

What licence is Mars's Fallout Expansion 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 Mars's Fallout Expansion?

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 Mars's Fallout Expansion 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 4 Jul 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Not indexed yet. Score 50 against a threshold of 55. The page still exists and is still linked; it simply carries noindex until we hold more.

Is this information wrong or missing something? .