Menu

mod

Left ForgottenMinecraft mod for 1.21.1

Once glory days of Minecraft, now buried beneath the void. Minecraft Alpha is still there, but left and abandoned ages ago.

client and servernewest supported release 1.21.1AdventureDecorationWorldgen
Latest version
1.1.3+mc1.21.1-NeoForge
Minecraft
1.20.1 to 1.21.1
Java
Java 21+
Loaders
Fabric, Forge, NeoForge
Licence
LicenseRef-All-Rights-Reserved
Downloads
1.5k
Updated
4 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Left Forgotten servers

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

  • 1.21.1
  • Fabric
  • Forge
  • NeoForge
  • 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 Left Forgotten declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1Fabric, Forge, NeoForge21+declared8 Aug 2024
1.20.1Fabric, Forge, NeoForge17+declared12 Jun 2023

Download

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

For Minecraft 1.21.1

Choose the loader you use before downloading.

  • NeoForge

    1.1.3+mc1.21.1-NeoForge · 1 Jul 2026 · LeftForgotten-1.1.3+mc1.21.1-NeoForge.jar

    Get NeoForge

  • Fabric

    1.1.3+mc1.21.1-Fabric · 1 Jul 2026 · LeftForgotten-1.1.3+mc1.21.1-Fabric.jar

    Get Fabric

Most recently published release

1.1.3+mc1.21.1-NeoForgerelease1 Jul 2026

LeftForgotten-1.1.3+mc1.21.1-NeoForge.jar · 23.2 MB · for 1.21.1 · NeoForge

Download this release
41529f838970…
Older versions14
  • 1.1.3+mc1.21.1-Fabric1 Jul 20261.21.123.2 MB170 downloads29702fb5581f…Get
  • 1.1.3+mc1.20.1-Forge1 Jul 20261.20.123.8 MB76 downloadse85f43407734…Get
  • 1.1.3+mc1.20.1-Fabric1 Jul 20261.20.123.2 MB63 downloads9dbaa16230b1…Get
  • 1.1.2+1.21.1-NeoForge19 Jun 20261.21.123.5 MB102 downloadsb2957a93fefe…Get
  • 1.1.2+1.21.1-Fabric19 Jun 20261.21.123.5 MB151 downloadscebd02e98f8a…Get
  • 1.1.2+mc1.20.1-Forge19 Jun 20261.20.124.1 MB85 downloadscb751234f05b…Get
  • 1.1.2+mc1.20.1-Fabric19 Jun 20261.20.123.5 MB53 downloadsa89ffc18ef77…Get
  • 1.1.1+mc1.20.1-Forge20 May 20261.20.124.2 MB90 downloads24d28aec0f78…Get
  • 1.1.1+mc1.20.1-Fabric20 May 20261.20.123.6 MB78 downloadsc2f74448ef6f…Get
  • 1.1+mc1.20.1-Forge25 Mar 20261.20.124.2 MB212 downloadse86d8f15a398…Get
  • 1.1+mc1.20.1-Fabric25 Mar 20261.20.123.6 MB121 downloadsda0a8b3047ba…Get
  • 1.0.1+mc1.20.1-Fabric14 Mar 20261.20.10.7 MB25 downloadsf8677e42ec57…Get
  • 1.0+mc1.20.1-Forge11 Mar 20261.20.10.7 MB30 downloads3fb3c7893f3a…Get
  • 1.0+mc1.20.1-Fabric11 Mar 20261.20.10.6 MB22 downloadsd91a8889ac70…Get

Frequently asked

Does Left Forgotten work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Left Forgotten 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 Left Forgotten support?

Everything the author has declared, from 1.20.1 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 Left Forgotten 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 Left Forgotten support?

Fabric, Forge, NeoForge. 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 Left Forgotten?

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 Left Forgotten 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 Left Forgotten?

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 Left Forgotten 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.Enchantment DescriptionsAdds in-game descriptions for enchantments to tooltips.

Details from Modrinth, where the author last updated it on 1 Jul 2026. 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? .