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The Nethermaw

The Nethermaw

MOD
The Nether has oceans of fire that few things dare cross. Yet something more ancient than the fortresses tears through the lava: a colossal basalt leviathan. Ride its back from shore to shore, but when its spines start to smoke, get off before it dives.
by SilasMorrow
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1,484 downloads
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Updated Oct 14, 2026
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Adventure and RPG Horror Mobs Player Transport World Gen
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👇The Nethermaw: Remodel and more Update Video

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Something older than The Nether Fortresses moves under the seas of Magma.

The Nethermaw is a colossal leviathan that drifts through the molten surface of the lava seas throughout the Nether.

Its hide is encased in fused basalt, blackened and warped by ages of unimaginable heat. Great scars split its armor, glowing faintly from within as though something beneath its flesh still burns.

Along its spine run rows of ancient magma vents. They breathe great plumes of smoke into the Nether sky, each exhalation followed by a dull crimson glow beneath its plates. And then there is its maw.

When the creature breaches the surface, its enormous jaw opens vertically, revealing a furnace of molten light within. It is large enough to swallow a horse.

It feeds upon the heat of the Nether itself and the endless furnace buried beneath the world. How long it has lived is unknown. Perhaps it has always been there.

The colossal ferrymaw

The Nethermaw is no beast to be conquered. It can be neither slain nor tamed

But for those daring enough to brave the depths and bold enough to ride upon this ancient beast, The Nethermaw can serve as a colossal ferryman across the Nether's molten seas. When the leviathan rises from the lava, its enormous back breaks the surface like a black island. Climb aboard. Stand upon its basalt-plated spine and let the creature carry you across the burning ocean, far above the lava that would otherwise consume you.

But keep your eyes sharp adventurer. When smoke begins to billow from The Nethermaw's magma vents, the Nethermaw is preparing to descend. Then the leviathan slips beneath the lava, leaving only a boiling wake behind. An adventurer who fails to dismount in time may find themselves cast into the Nether's burning depths.

What The Mod Adds

One new creature mob: The Nethermaw

A colossal, passive leviathan that swims through the Nether's lava oceans.

🌋 Roams the lava seas of the Nether

🐍 Completely passive

🔥 Invulnerable

🛶 Can be ridden across lava

💨 Magma vents billow smoke for eight seconds before it dives, your only warning

⚠️ Adventurers risk being stranded or killed in lava when the leviathan submerges

🌊 Brings the Nether's lava oceans to life with an ancient, living presence

🧭 Explore the Nether and one will surface on any large open lava sea nearby, 32 to 96 blocks out

🚫 Never spawns in small pools, cave pockets or fortress lava. You will only ever see one per large body of lava ocean

🥚 A spawn egg sits in the creative Spawn Eggs tab and works when clicked on lava

Future Updates

🟢 Available now - Fabric 1.21.1, Forge 1.20.1 & Fabric 1.20.1

🟡 Planned - Item drops, new interactions and animations, baby maws (Magmaws), aggressive behavior, vulnerability and more as development continues

💬 Always open to suggestions. Tell me what you want to see.

Version and loader requests are welcome in the comments. If you are waiting on a specific combination, saying so helps me prioritize.

FAQ

Does it attack me? No. It is completely passive.

Can I kill it? No. It is invulnerable to normal damage. /kill still works if you really need it gone.

Does it drop anything? No not yet. The reward is the ride and the view.

How do I find one? Explore the Nether. They surface on their own near large lava oceans. There is also a creative spawn egg.

Will it break my world or my other mods? It adds one mob and a spawn egg. No terrain generation changes, no block changes and no recipe changes.

Can I add to an already existing Minecraft world? Yes.

Does it work on servers? Yes. Install it on both the server and the client.

PERMISSIONS

Free to use in any modpack, public or private, as it should be. Credit is appreciated. Licensed MIT.

FEEDBACK AND BUGS

Found a bug or have feedback? Leave a Comment.

nethermaw-fabric-1.21.1-3.0.0.jar
MC Client, Fabric, 1.21.1, Server
Release 2026-10-09 Get
nethermaw-neoforge-1.21.1-3.0.0.jar
MC Client, 1.21.1, NeoForge, Server
Release 2026-10-09 Get
nethermaw-forge-1.20.1-3.0.0.jar
MC Client, 1.20.1, Forge, Server
Release 2026-10-09 Get
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