
Better Nether Generation
A mod that edits the Nether's generation and makes the Nether roof generate higher.
Screenshots






About this Mod
This datapack/mod a full rewrite of my older datapack Higher Nether Roof-256 blocks which was one of the first ever datapacks that made the Nether higher than 128 blocks (yes even before Starmute made his 1.18 Amplified Nether datapack/mod).
I've spent a month working on this mod/datapack and making it absolutely perfect. Unlike the old version this one is fully glitchless and works perfectly with Minecraft 1.19+. This version also contains different world generation so the nether will look amazing.
I personally suggest using either the 192 block version or the 256 block version but there are other ones as well. This is because the higher you go the worse performance you get and it also makes the world file a lot bigger.
The backport is not perfect but the generation is basically the same although the same seed will be completely different (only in terms of terrain not biomes).
WARNING: If you are using a varaint which makes the nether higher than 256 blocks you risk losing everything built/generated higher than 256 blocks when updating or removing the mod/datapack. If you wish to update your world/remove the datapack without riksing this you have to use a datapack which modifies the nether world height. I will publish a datapack/mod which does that every time a new incompatible version comes out.
If you want to support me you can leave a comment, share it with your friends or showcase it in a video. : )
The 1.18/1.18.1 backport for Fabric is giving me some problems. You can use the datapack version for now.
Currently the only way to play with this on forge is to use the datapack version.
If any of you wish to help me to port it to forge please contact me on Discord or PlanetMinecraft. My PMC username is Gaming_Crew
Available Versions
How to Install Better Nether Generation on Your Server
Order Server
Order a Minecraft Java server with at least 4 GB RAM (6 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.20.1).
Install Mod
Open the mod browser in the dashboard and search for "Better Nether Generation". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.20.1, 1.20, 1.19.4 (+5 more)
Server-side
✓ RequiredRecommended RAM
6 GB(min. 4 GB)Frequently Asked Questions
Better Nether Generation 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 (1.20.1). You can switch loaders with one click in the panel.
Is Better Nether Generation compatible with fabric?
Better Nether Generation officially supports fabric for Minecraft 1.20.1, 1.20, 1.19.4. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Better Nether Generation – how to optimize performance?
Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if Better Nether Generation 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.
Similar Mods
Rent Modded Server
Install Better Nether Generation with just one click on your server.