Nether Tweaks
Small adjustments to Nether-related structures: Change Y offset for Fortresses, and restrict where Nether Portals can be lit.
Screenshots
About this Mod
Nether Tweaks adds a couple of options for customizing Nether-related structures.
Fortress Height
Adds a configurable y-offset for Nether Fortress placement. You might want to do this if you have changed the height of the Nether or made more extensive changes to Nether worldgen.
Portal Restrictions
Allows you to disable lighting of Nether portals outside of the bounding box of a configurable list of structures. One possible use would be to only allow portals to be lit where a ruined portal already exists.
There is also an option to remove these restrictions once a portal has been successfully lit.
Available Versions
How to Install Nether Tweaks 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 "Nether Tweaks". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.20.1
Server-side
✓ RequiredRecommended RAM
6 GB(min. 4 GB)Frequently Asked Questions
Nether Tweaks 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 Nether Tweaks compatible with fabric and forge?
Nether Tweaks officially supports fabric, forge for Minecraft 1.20.1. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Nether Tweaks – how to optimize performance?
Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if Nether Tweaks 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.
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Rent Modded Server
Install Nether Tweaks with just one click on your server.