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Infernum EffugiumMinecraft mod for 1.21.6

A minecraft mod that adds a new nether roof structure, giving access to the nether roof and a new mace.

client and servernewest supported 1.21.6AdventureEquipmentDecorationWorldgen
Latest version
1.4.2+1.21.1
Minecraft
1.20.1 to 1.21.6
Java
Java 21+
Loader
Fabric
Licence
LGPL-3.0-only
Downloads
7.5k
Updated
5 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Infernum Effugium servers

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

  • 1.21.6
  • 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 Infernum Effugium declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.6Fabric21+declared17 Jun 2025
1.21.4Fabric21+declared3 Dec 2024
1.21.1Fabric21+declared8 Aug 2024
1.20.1Fabric17+declared12 Jun 2023

Download

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

All 36 releases
1.4.2+1.21.1release9 May 2026

infernum-effugium-1.4.2+1.21.1.jar · 0.4 MB · for 1.21.1

Download latest
c86768e3b77d…
Older versions24
  • 1.4.1+1.21.124 Feb 20261.21.10.4 MB333 downloadsc4b7dc3d102b…Get
  • 1.4+1.21.19 Jan 20261.21.10.4 MB949 downloads028d996ce228…Get
  • 1.3.10+1.21.12 Jan 20261.21.10.4 MB148 downloads819b316e8b10…Get
  • 1.3.9+1.21.130 Dec 20251.21.10.4 MB51 downloads38c7b886bf06…Get
  • 1.3.8+1.21.129 Dec 20251.21.10.4 MB185 downloadse3541cf64eb7…Get
  • 1.3.7+1.21.128 Dec 20251.21.10.4 MB188 downloadsd1a54247fce5…Get
  • 1.3.6+1.21.120 Aug 20251.21.10.4 MB321 downloads905776e0e103…Get
  • 1.3.5+1.21.6-POLYMER9 Jul 20251.21.61.3 MB118 downloads77eb6ebbbea3…Get
  • 1.3.5+1.21.4-POLYMER9 Jul 20251.21.41.2 MB218 downloads9cba5c284734…Get
  • 1.3.5+1.21.1-POLYMER9 Jul 20251.21.11.2 MB183 downloadscdf2423640bb…Get
  • 1.3.4+1.21.4-POLYMER24 Jun 20251.21.41.2 MB48 downloadsd1e66b9812e2…Get
  • 1.3.3+1.21.4-POLYMER24 Jun 20251.21.41.2 MB33 downloads2b2bd2b19b6a…Get
  • 1.3.3+1.21.6-POLYMER24 Jun 20251.21.61.3 MB56 downloads9bdb170d3393…Get
  • 1.3.2+1.21.4-POLYMER24 Jun 20251.21.41.2 MB29 downloads25accc8c218c…Get
  • 1.3.1+1.21.4-POLYMER23 Jun 20251.21.41.2 MB30 downloads1edc1948ea2c…Get
  • 1.3.1+1.20.119 Feb 20251.20.10.4 MB2.1k downloads74db9fed96f2…Get
  • 1.3+1.20.119 Feb 20251.20.10.4 MB56 downloads645c5556a1b2…Get
  • 1.2.1+1.21.4-POLYMER2 Jan 20251.21.41.2 MB396 downloadse52817df663d…Get
  • 1.2.1.1+1.20.130 Dec 20241.20.10.3 MB217 downloads0d74a8ca13ae…Get
  • 1.2.0.1+1.20.129 Dec 20241.20.10.3 MB54 downloads4043bbb76cf0…Get
  • 1.2.0+1.20.124 Dec 20241.20.10.3 MB55 downloads6704ddee62eb…Get
  • 1.1.4+1.20.114 Dec 20241.20.10.3 MB93 downloads019753f8a5b9…Get
  • 1.1.3+1.21.4-POLYMER5 Dec 20241.21.41.1 MB148 downloadsa986ae5659db…Get
  • 1.1.3+1.20.15 Dec 20241.20.10.3 MB188 downloads89969daf1e52…Get

Frequently asked

Does Infernum Effugium work on Minecraft 1.21.6?

Yes. 1.21.6 is the newest Minecraft version Infernum Effugium 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 Infernum Effugium support?

Everything the author has declared, from 1.20.1 up to 1.21.6. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Infernum Effugium 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 Infernum Effugium 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 Infernum Effugium?

On the newest Minecraft version it supports, Java 21 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.

What licence is Infernum Effugium under?

LGPL-3.0-only, 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 Infernum Effugium?

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 Infernum Effugium 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. The download link goes to the source recorded for that release; verify the publisher, filename and 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 Modrinth, where the author last updated it on 9 May 2026. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .