UnderFabric
An Undertale Minecraft mod because I couldn’t find any good ones
About this Mod
DISCLAIMER: This mod may contain spoilers from Undertale, currently mild, but will increase further down the line. If you want to follow this, and don’t want the spoilers, I suggest you try out Undertale for yourself (preferably all 3 routes, but if you don’t want to do them all that is ok as well)
UnderFabric
UnderFabric is a Minecraft mod that adds a bunch of stuff from the game Undertale.
What is currently done
- Weapons (rudimentary, explained later on)
Features
Items
Weapons
I have done all the weapons, in basic form. Most of them don’t have custom models yet. Yes, I do know that the model for the tough glove sucks, I haven’t gotten around to making a good one for it yet. In addition, the items only give damage, and a cool down timer how I see fit. All of the textures are the steam badge icons edited (by removing the respective soul colour from around the outside), the only exception is the worn dagger, that either doesn’t have one, or it isn't listed on the wiki, so I just poorly edited the True Knife texture.
Conumables
All the consumable items are implemented, but currently not in a usable way.
Download
For stable versions download a Release, for beta versions that are not done but in a releasable state download a Beta, for a very unstable version from development download an Alpha (Release.Beta.Alpha)
I only release betas and releases on the Fabric Discords, alphas go on my Discord
Click on the badges below to go to the release page for each version:
Available Versions
How to Install UnderFabric 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 (1.16.5).
Install Mod
Open the mod browser in the dashboard and search for "UnderFabric". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.16.5, 1.16.4
Server-side
✓ RequiredRecommended RAM
6 GB(min. 4 GB)Frequently Asked Questions
UnderFabric 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 (1.16.5). You can switch loaders with one click in the panel.
Is UnderFabric compatible with fabric?
UnderFabric officially supports fabric for Minecraft 1.16.5, 1.16.4. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with UnderFabric – how to optimize performance?
Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if UnderFabric 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 UnderFabric with just one click on your server.