Immersive Fixes
Immersive Fixes is a Forge addon for Immersive Engineering that backports bug fixes and minor content to Minecraft 1.20.1.
What it does
The addon applies fixes for reported Immersive Engineering problems to the 1.20.1 release, so the main mod can focus on newer versions of the game. Fixes cover fluids that destroyed multiblocks, inverted secondary output percentages in Arc Furnaces, an exploit involving the Coke Oven, and several logic errors in the Diesel Generator, which no longer treats water as fuel, runs endlessly or misuses fuel. Ear defenders also work again.
Several fixes were written by the contributors instead of the Immersive Engineering team, and they do not depend on that mod's code. Immersive Fixes also corrects rendering problems on machines, such as dark triangular patches, inside-out surfaces, stale textures after a resource pack reload, and repeated geometry on large machines. The addon requires Immersive Engineering and is installed on both the client and the server. It is released under the Apache License 2.0 and is open source.
Key features
Multiblock and fluid fixes
Fluids no longer break multiblock structures, which keeps larger machines intact during normal operation.
Diesel Generator corrections
The generator distinguishes water from fuel, stops running indefinitely and consumes the correct amount of fuel.
Arc Furnace output fix
Secondary outputs from the Arc Furnace now show the correct percentage instead of the inverted value.
Machine rendering fixes
Dark patches, inverted faces, invisible surfaces and outdated textures after a resource reload are corrected on machines.
Rendering performance
Large machines draw their geometry once rather than up to seven times, which reduces the rendering work they cause.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Required by 1 mod
Use cases
Long-running 1.20.1 worlds
Players who stay on 1.20.1 and use Immersive Engineering can apply the backported fixes to their existing machines and setups.
Multiplayer servers
Server owners running Immersive Engineering on 1.20.1 install the addon on the server and on every player's client.
Who it’s for: Players and server owners who use Immersive Engineering on Minecraft 1.20.1 and want the reported bugs in machines and multiblocks fixed without moving to a newer game version.
How it compares
Immersive Aircraft x Immersive Engineering is a Forge and NeoForge addon that covers 1.20.1 – 1.21.1 and is open source under the GNU General Public License v3.0 or later. Create Immersive Unnecessary Shaft is a Forge mod for 1.20.1 – 1.20.6 under the MIT License that is not open source, so it adds content rather than fixes.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Immersive Fixes | Forge | 1.20.1 | Client and server | 2026-10-14 |
| Immersive Aircraft x Immersive Engineering | Forge and NeoForge | 1.20.1 – 1.21.1 | Client and server | 2026-08-05 |
| Create Immersive Unnecessary Shaft | Forge | 1.20.1 – 1.20.6 | Not published | 2025-05-08 |
Questions
Does Immersive Fixes need Immersive Engineering?
Does the server need Immersive Fixes?
Which game version does Immersive Fixes support?
Who wrote the fixes?
In the catalog
Immersive Fixes is one of 8,499 Technology mods on ModsFinder, and one of 4,122 Technology mods for Forge. 34,764 mods support Minecraft 1.20.1.
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What the author says
A simple Immersive Engineering addon to backport critical bug fixes and minor content to 1.20.1. Note that in some cases I am not the one who patched these issues, BluSunrize (and the IE team at large) is. I merely backport the fixes to 1.20.1 with permission, so the IE dev team can pursue their goal of focusing on…
Official listing
- Modrinth page
- modrinth.com/mod/immersive-fixes
- Owner
- melodiccougar7
- Published
- 2025-04-28
- Updated on Modrinth
- 2026-10-14
- Facts verified
- 2026-10-15