Infernal Expansion Redux

Infernal Expansion Redux

A rebuild and remaster of one of MC's most iconic Nether mods, now on 1.20.1 on Forge AND Fabric!

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10.8K Downloads
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Screenshots

Hanging Fungus
Glowstone Stalagmite
Underground
Glowstone Canyon
Sniffer in the Glowstone Canyon
Biome Intersection

About this Mod

Infernal Expansion Redux

Is an in-development rebuild-from-the-ground-up of the iconic Infernal Expansion mod, designed for multi-loader support between both Forge and Fabric on 1.20.1, and NeoForge and Fabric on future versions eventually too. It occupies its own page as it is both being developed by a different team than the original, and because its final contents will deviate from the original mod too.

Glowstone Canyon

The Glowstone Canyon biome returns, featuring Glowstone Stalagmites & Stalagtites, a desert of Shimmer Sand with pits obscured by falling Glimmer Gravel, and littered with Luminous Fungus, which lights up when approached; and the prickly Dullthorns; Both of which will give you Luminous when touched, an Effect that lights you up, but which will draw the ire of the local inhabitants...

Glowsquito

A nasty firefly-like giant Mosquito that will suck the life out of any nearby Glowstone, Dimstone and Shroomlight, turning them into the new Dimstone, Dullstone and Hollowlight respectively. It is neutral by default, but will swarm you if it thinks it can suck the light out of you via the Luminous effect. 

Killing it will have it drop the compressed Glowdust from its guts, Glowcoke, which can be used to make special Glowlight-variants of normal light items.

Blindsight

A michevious frog-like clam that swallows Glowsquitos whole. Unlike a Frog, its tongue actually knocks things away! Don't gain Luminous around this thing, or it might just confuse you for a Glowsquito and become a whole lot more aggressive. When slain, said tongue can actually be eaten as part of a delicious and nutricious Stew.

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If you find any bugs, let us know on our GitHub!

Comments are turned off due to endless port requests on the original page. If we want to port it, we will.
If you need to reach us, use the Discord

For more of our mods, check out our website!

Available Versions

Infernal Expansion Fabric 1.21.1 - 0.3.9release
MC 1.21.1fabric
May 31, 2026
Infernal Expansion Neoforge 1.21.1 - 0.3.9release
MC 1.21.1neoforge
May 31, 2026
Infernal Expansion Neoforge 1.21.1 - 0.3.8release
MC 1.21.1neoforge
May 28, 2026
Infernal Expansion Fabric 1.21.1 - 0.3.8release
MC 1.21.1fabric
May 28, 2026
Infernal Expansion Fabric 1.21.1 - 0.3.7release
MC 1.21.1fabric
May 27, 2026

How to Install Infernal Expansion Redux on Your Server

1

Order Server

Order a Minecraft Java server with at least 4 GB RAM (6 GB recommended).

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.1).

3

Install Mod

Open the mod browser in the dashboard and search for "Infernal Expansion Redux". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabricforgeneoforge

Minecraft Versions

1.21.1, 1.20.1, 1.20

Server-side

Required

Recommended RAM

6 GB(min. 4 GB)

Frequently Asked Questions

Infernal Expansion Redux server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 4 GB RAM is allocated and the loader matches the mod version (1.21.1). You can switch loaders with one click in the panel.

Is Infernal Expansion Redux compatible with fabric and forge and neoforge?

Infernal Expansion Redux officially supports fabric, forge, neoforge for Minecraft 1.21.1, 1.20.1, 1.20. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Infernal Expansion Redux – how to optimize performance?

Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if Infernal Expansion Redux consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.

Rent Modded Server

Install Infernal Expansion Redux with just one click on your server.

Recommended RAM
6 GBab €12/mo
Min. 4 GB | +1 GB pro 5 Spieler
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1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
GNU Affero General Public License v3.0 only
Server-side
Required

Supported Versions

1.21.11.20.11.20