Fathom Mod

Fathom Mod

Fathom mod is an action adventure style mod heavily inspired by terraria's calamity mod, terraria itself and ultrakill, to an extent.

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146 Downloads
neoforgeequipment
Rent Server with this Mod

Screenshots

Funni wepon :)
Gallery image type: tooltip
Accessories/wish.com
No bunnies were harmed during the production of this image

About this Mod

tldr:

  • 9 weapons
  • 3 weapon classes
  • 18 trinkets
  • 1 boss
  • 1 biome + 1 mob in it

Long description

Inspired from Terraria, Fathom Mod adds 3 weapon classes: Melee, Ranged and Assassin with 9 new weapons to choose from. Another thing inspired by terraria was the addition of "trinkets" which are equippables that, for now, passively help the player which have their own ui. Note: some things in vanilla have been tweaked for balancing purposes

What to expect

"Blood Moon Harvest" update expected to come out some time in june/july (delayed due to school and scopecreep)

Expected content in Blood Moon Harvest:

  • 5 weapons
  • 5 trinkets
  • 3 crafting materials
  • World events
  • New weapon class
  • Blood river entities
  • Balance changes
  • Possible changes to old things
  • Changes to the trinket gui
  • Permanent buffs
  • Test world
  • More stuff

Preview of one of the weapons

Preview of one of the weapons

Preview of trinkets

Preview of trinkets

Available Versions

Fathom Modrelease
MC 1.21.4neoforge
October 3, 2025
Fathom Modrelease
MC 1.21.3neoforge
October 3, 2025
Fathom Modrelease
MC 1.21.4neoforge
September 13, 2025
Fathom Modrelease
MC 1.21.3neoforge
September 13, 2025
Fathom Modrelease
MC 1.21neoforge
September 13, 2025

How to Install Fathom Mod on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set neoforge Loader

In the panel under "Egg", select the neoforge loader and matching Minecraft version (1.21.4).

3

Install Mod

Open the mod browser in the dashboard and search for "Fathom Mod". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

neoforge

Minecraft Versions

1.21.4, 1.21.3, 1.21.1 (+1 more)

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Fathom Mod server crashes on startup – what to do?

Most common cause: wrong neoforge 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 (1.21.4). You can switch loaders with one click in the panel.

Is Fathom Mod compatible with neoforge?

Fathom Mod officially supports neoforge for Minecraft 1.21.4, 1.21.3, 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Fathom Mod – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Fathom Mod 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.

Rent Modded Server

Install Fathom Mod with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
LicenseRef-All-Rights-Reserved
Server-side
Required

Supported Versions

1.21.41.21.31.21.11.21