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Aether: Lost Content AddonMinecraft mod for 1.20.1

A mod that brings back a lot of scrapped, unused, and even concepted content, from Aether I, and Aether Legacy.

newest supported release 1.20.1World StructuresWorld GenMc AddonsWorld Mobs
Latest version
Lost Aether Content 1.20.1-v1.2.3
Minecraft
1.12.2 to 1.20.1
Java
Java 17+
Loaders
Forge, NeoForge
Licence
not stated
Downloads
31.8M
Updated
13 mo ago
Available on
CurseForge

Screenshots

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

Minecraft versions

Every version Aether: Lost Content Addon declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.20.1Forge, NeoForge17+declared12 Jun 2023
1.19.4Forge, NeoForge17+declared14 Mar 2023
1.12.2Forge, NeoForge8+declared18 Sept 2017

Download

From Aether: Lost Content Addon’s own host. Nothing is re-hosted here.

For Minecraft 1.20.1

Choose the loader you use before downloading.

  • Forge, NeoForge

    Lost Aether Content 1.20.1-v1.2.3 · 4 Dec 2023

    Multiple loaders are listed; verify the file before downloading.

    Choose file on publisher ↗

Most recently published release

Lost Aether Content 1.20.1-v1.2.3release4 Dec 2023

lost_aether_content-1.20.1-1.2.3.jar · 19.3 MB · for 1.20.1 · Forge, NeoForge

Choose file on publisher ↗
8138ec72d019…
Older versions20
  • Lost Aether Content 1.20.1-v1.2.227 Oct 20231.20.119.3 MB788.5k downloads44ef339b8692…Choose file on publisher ↗
  • Lost Aether Content 1.20.1-v1.2.128 Sept 20231.20.119.3 MB470.1k downloads647da02298ea…Choose file on publisher ↗
  • Lost Aether Content 1.19.4-v1.1.728 Sept 20231.19.419.3 MB18.4k downloadsc359818b19fd…Get
  • Lost Aether Content 1.20.1-v1.2.017 Sept 20231.20.119.3 MB38.8k downloads64e5efe1a517…Choose file on publisher ↗
  • Lost Aether Content 1.19.4-v1.1.617 Sept 20231.19.419.3 MB976 downloads97e0a253c2ef…Get
  • Lost Aether Content 1.19.4-v1.1.511 Sept 20231.19.419.3 MB931 downloadsaf7070aea183…Get
  • Lost Aether Content 1.19.4-v1.1.431 May 20231.19.44.8 MB63.8k downloads902e6c76d637…Get
  • Lost Aether Content 1.19.4-v1.1.324 May 20231.19.44.8 MB2.3k downloadsd6ea5515d489…Get
  • Lost Aether Content 1.19.4-v1.1.26 May 20231.19.44.8 MB6.1k downloadse6fc73ce608d…Get
  • Lost Aether Content 1.19.4-v1.1.11 May 20231.19.44.8 MB2.6k downloads11d9e24537ea…Get
  • Lost Aether Content 1.19.4-v1.1.026 Apr 20231.19.44.8 MB2.0k downloadsb99f1f71559b…Get
  • Lost Aether Content 1.12.2-v1.0.221 Aug 20201.12.21.0 MB6.0M downloads7afd5c89092d…Get
  • Lost Aether Content 1.12.2-v1.0.119 May 20201.12.21.0 MB190.3k downloads233b50c7f805…Get
  • Lost Aether Content 1.12.2-v0.1.34 Apr 20201.12.20.8 MB234.8k downloads18a42c007c32…Get
  • Lost Aether Content 1.12.2-v0.1.29 Feb 20201.12.20.6 MB363.3k downloads4e597f428b3f…Get
  • Lost Aether Content 1.12.2-v0.1.125 Aug 20191.12.20.6 MB579.5k downloadsbae723649aa3…Get
  • Lost Aether Content 1.12.2-v0.1.018 Aug 20191.12.20.6 MB93.9k downloads7106afef1053…Get
  • Lost Aether Content 1.12.2-v0.0.314 Apr 20191.12.20.6 MB397.3k downloads9b840b15c95b…Get
  • Lost Aether Content 1.12.2-v0.0.28 Apr 20191.12.20.6 MB660 downloadsee0d8d9517f7…Get
  • Lost Aether Content 1.12.2-v0.0.12 Apr 20191.12.20.5 MB1.4k downloads4f74cf73ff98…Get

Frequently asked

Does Aether: Lost Content Addon work on Minecraft 1.20.1?

Yes. 1.20.1 is the newest Minecraft version Aether: Lost Content Addon 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 Aether: Lost Content Addon support?

Everything the author has declared, from 1.12.2 up to 1.20.1. The full list is in the table above, with the Java runtime each version needs next to it.

Which platform or loader does Aether: Lost Content Addon support?

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 Aether: Lost Content Addon?

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.

How do I install Aether: Lost Content Addon?

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 Aether: Lost Content Addon safely?

Start with the author's page on CurseForge, 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.

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Details from CurseForge, where the author last updated it on 12 Oct 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? .