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Aeronautics Levitite Server Fix

by dacite

Aeronautics Levitite Server Fix lets Levitite Blend crystallize on dedicated servers, a step that Create Aeronautics otherwise fails at there.

NeoForgeServer-side onlyMIT License1.21.1

What it does

On a dedicated server, right-clicking a Levitite Blend with a catalyzer, a torch, flint and steel or a fire charge does nothing, and the server log records an error. This mod removes that failure, so the blend crystallizes the same way it does in singleplayer, where the integrated server already works. The change is a small server-side fix applied to Create Aeronautics, and it covers only that interaction.

The jar goes into the server's mods folder, and the environment is server-side only, so players join without installing it. It requires NeoForge and Create, and it names Create Aeronautics as an optional dependency. The mod is published only for NeoForge, for 1.21.1, and the latest file is 1.1.0, released on 2026-06-14. The code is released under the MIT License and is not open source.

The fix is tracked as upstream Simulated-Project issue 664. The root cause is documented in a write-up by the author, and the mod's Mixin targets reference class names only, so it compiles against Create Aeronautics as a dependency. Newer upstream builds of Create Aeronautics already include the correction, so the mod is not needed there.

Key features

  1. Levitite Blend crystallization

    Crystallizing Levitite Blend works on dedicated servers, using the same catalyzer, torch, flint and steel or fire charge inputs.

  2. Server-side only

    Only the server runs the fix, and players connect without installing anything.

  3. Targeted correction

    The change touches a single interaction in Create Aeronautics and adds no new blocks, items or recipes.

Compatibility

Latest build for each game version and loader.

1.21.11.1.0
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Requirements

Dependencies declared by the latest file for each loader.

Optional 1

Create AeronauticsBuild anything from airships to planes and cars!
Optional

How it compares

Full comparison

More Levitite is a NeoForge mod for 1.21.1 with the client and server environment, under All rights reserved and not open source. Aeronautics Hot Air Fix is a client-side only NeoForge mod for 1.21.1, licensed under 0BSD and not open source, so it does not touch the server behavior this mod fixes. Create Aeronautics: Portable Engine Liquid Fuel is a NeoForge mod for 1.21.1 under the MIT License, adding a different feature rather than the crystallization fix.

ModLoadersGame versionsEnvironmentUpdated
Aeronautics Levitite Server FixNeoForge1.21.1Server-side only2026-06-14
More LevititeNeoForge1.21.1Client and server2026-05-11
Aeronautics Hot Air FixNeoForge1.21.1Client-side only2026-08-27
Create Aeronautics: Portable Engine Liquid FuelNeoForge1.21.1Client and server2026-04-28

Questions

Does Aeronautics Levitite Server Fix need Create Aeronautics?

Yes. Create Aeronautics is listed as an optional dependency, and the mod requires Create to run, so both must be installed on the server.

Do players need to install this mod?

No. It runs on the server alone, so players need nothing extra to join.

Is this fix still needed with newer Create Aeronautics versions?

Newer upstream builds of Create Aeronautics already include the correction, so the mod is only needed on builds that lack it.

In the catalog

Aeronautics Levitite Server Fix is one of 36,990 Utility mods on ModsFinder, and one of 13,477 Utility mods for NeoForge. 32,366 mods support Minecraft 1.21.1.

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What the author says

A tiny server-side fix for Create: Aeronautics that lets Levitite Blend crystallize on dedicated servers. It works in singleplayer because the integrated server shares the client distribution.
dacite, on the Modrinth page

Official listing

Owner
dacite
Published
2026-06-14
Updated on Modrinth
2026-06-14
Facts verified
2026-10-15

Tags