
Underforge
(Original Thumbnail by ninipou on Discord.) This is the base icon for the Underforge mod, Which adds the following, Undertale Souls Undertale Weapons And Undertale Recipes.
Screenshots



About this Mod
This is the Underforge, A mod that adds you're favorite items and more from Undertale.
Which adds the following,
7 Undertale Souls, (Determination, Bravery, Justice, Kindness, Integrity, Patience, Perseverance.)
9 Unique Weapons, (Dagger, Tough Glove, Scythe, Empty Guns [And Bullets], A Pan, High Heel, Toy Knife, Notebook, Hatred Knife.)
2 Unique Souls, (Fear Soul, Hate Soul.)
How do i find the souls?
Sadly you cannot find the souls unless you make structures and use cheats to put the soul in there.
How to use the souls;
First your gonna wanna make sure you only have one of that soul and your inventory isnt full,
Then hold right click with the soul in the main hand and you will get its unique item/weapon.
How do i use the item/weapon?
Simply right click it and test it out.
if you have any issues please join the discord and go to
#bug-report
Other members or myself can help assist you with the issues.
(Please keep in mind that im using MCreator to make this mod and have limited coding access because im dumb)
F.Y.I.
Please note that the gallery will have some recipes and if there are any varients of the item then i will not list the recipe as they will be the same but with a different varient.
Available Versions
How to Install Underforge on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set forge Loader
In the panel under "Egg", select the forge loader and matching Minecraft version (1.20.1).
Install Mod
Open the mod browser in the dashboard and search for "Underforge". 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
4 GB(min. 3 GB)Frequently Asked Questions
Underforge server crashes on startup – what to do?
Most common cause: wrong forge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 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 Underforge compatible with forge?
Underforge officially supports forge for Minecraft 1.20.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Underforge – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Underforge 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 Underforge with just one click on your server.