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Umbral SkiesMinecraft mod for 1.21.1

A mod for Twilight Forest-Aether content fusion

newest supported release 1.21.1World StructuresWorld GenTwilight Forest
Latest version
Umbral Skies 1.6.2
Minecraft
1.19.4 to 1.21.1
Java
Java 21+
Loaders
NeoForge, Forge
Licence
not stated
Downloads
11.5M
Updated
5 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 Umbral Skies declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge, Forge21+declared8 Aug 2024
1.20.4NeoForge, Forge17+declared7 Dec 2023
1.20.1NeoForge, Forge17+declared12 Jun 2023
1.19.4NeoForge, Forge17+declared14 Mar 2023

Download

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

Most recently published release

Umbral Skies 1.6.2release7 Jun 2026

umbral_skies-1.21.1-1.6.2.jar · 0.2 MB · for 1.21.1 · NeoForge

Download this release
3fa47552e795…
Older versions8
  • Umbral Skies 1.6.126 Dec 20251.21.10.2 MB93 downloadsfae0aa4c0e73…Get
  • Umbral Skies 1.63 Nov 20251.21.10.2 MB60 downloadsbfff9560c2b7…Get
  • Umbral Skies 1.52 Aug 20251.21.10.2 MB83 downloads8b7201cc2587…Get
  • Umbral Skies 1.45 Jul 20241.20.40.2 MB5.1k downloadsa690729c0d5d…Get
  • Umbral Skies 1.325 Sept 20231.20.10.2 MB6.4M downloads32053655c876…Choose file on publisher ↗
  • Umbral Skies 1.225 Sept 20231.19.40.2 MB1.6k downloadsfdba70bef2b8…Get
  • Umbral Skies 1.11 Jun 20231.19.40.1 MB1.2k downloads1dc17136ec63…Get
  • Umbral Skies 1.029 Apr 20231.19.425 KB1.4k downloads9aaf0a80e26f…Get

Frequently asked

Does Umbral Skies work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Umbral Skies 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 Umbral Skies support?

Everything the author has declared, from 1.19.4 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Which platform or loader does Umbral Skies support?

NeoForge, 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 Umbral Skies?

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.

How do I install Umbral Skies?

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 Umbral Skies 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 7 Jun 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? .