CurseForge · Minecraft mod
-54 hardcoded lava level fix
a fix for the hardcoded lava level bug ( mc-237017 ) that doesn't break normal lava gen like "Deep Underground Lava Fix"
Quick answer
Which -54 hardcoded lava level fix release should I use?
-54 hardcoded lava level fix mc-fix-hardcoded-lava-level-1.2.2.jar targets 26.1, 26.1.1, 26.1.2 with Fabric. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is -54 hardcoded lava level fix required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does -54 hardcoded lava level fix mc-fix-hardcoded-lava-level-1.2.2.jar need?
mc-fix-hardcoded-lava-level-1.2.2.jar. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add -54 hardcoded lava level fix without breaking your instance.
Built for -54 hardcoded lava level fix mc-fix-hardcoded-lava-level-1.2.2.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use mc-fix-hardcoded-lava-level-1.2.2.jar. It targets 26.1, 26.1.1, 26.1.2 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside mc-fix-hardcoded-lava-level-1.2.2.jar. It opens that exact file at the source.
About this project
What does -54 hardcoded lava level fix add?
mc-fix-hardcoded-lava-level
Minecraft mod to fix MC-237017 (All caves are filled with lava at and below Y value -54) but doesn't break vanilla lava gen like https://github.com/Andrew6rant/MC-237017-Fix
This mod is server-side only, and does not require anything on the client.
caveats:
this fix changes the hardcoded lava level from -54 to 117 blocks under sea level, this should fix a lot of custom dimensions but some extreme ones where the sea level is very high and the world very deep might not be fixed with this
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Project description from CurseForge.
Pick your setup
-54 hardcoded lava level fix by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.1.1
1 loader build26.1
1 loader build1.21.11
1 loader build1.21.10
1 loader build1.21.9
1 loader build1.21.8
1 loader build1.21.7
1 loader build1.21.6
1 loader build1.21.5
1 loader build1.21.4
1 loader build1.21.3
1 loader buildShowing the newest 12 of 34 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
-54 hardcoded lava level fix versions and loaders
mc-fix-hardcoded-lava-level-1.2.2.jar
5 Jun 2026
mc-fix-hardcoded-lava-level-1.2.1.jar
13 Feb 2026
mc-fix-hardcoded-lava-level-1.2.0.jar
4 Feb 2026
mc-fix-hardcoded-lava-level-1.1.0.jar
21 Nov 2024
mc-fix-hardcoded-lava-level-1.19.3-1.x_1.0.0.jar
29 Jun 2023
Looking for an older file? The official CurseForge project page is in Resources.