Rusty Moss
by wdfeer
Rusty Moss is a Fabric technology mod that adds an alternative way to farm iron, through moss blocks that can produce rusted iron nuggets.
What it does
Rusty Moss gives players a simpler route to iron than the vanilla method. The moss grows where flowing water touches its side, and a small chance per contact can spawn a rusty nugget. Lush caves are fairly rare, so the moss is not found in every world. The magic number in the config affects how often rusty nuggets spawn.
Rusty moss has to be dug with a silk touch tool, and the mod recognizes a hand, pickaxe or hoe for this. Rusted iron nuggets can be smelted in a furnace or a blast furnace into regular iron nuggets, so the output fits into existing iron recipes. Rusty Moss requires Fabric API and Fabric Language Kotlin on Fabric for 1.20.1.
The mod runs on the client and the server, so both need it. Its files target 1.20.1 only, and the 1.0.0 build was published on 2025-05-23 under the GNU General Public License v3.0 only. The source code is open source and an issue tracker is available.
Key features
Moss farming
Flowing water touching rusty moss can produce rusted iron nuggets, offering an alternative to vanilla iron farming.
Silk touch harvesting
Rusty moss is collected with a silk touch tool, and a hand, pickaxe or hoe is enough for this.
Nugget smelting
Rusted iron nuggets smelt into regular iron nuggets in a furnace or a blast furnace.
Configurable spawn chance
A magic number in the config sets how often rusty nuggets spawn from the moss.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 2
How it compares
Craftable XP Nuggets [Create] is a Fabric mod for 1.20.1 with a client and server environment, released under the MIT License and not open source. Better Iron Smelting is also a Fabric mod for 1.20.1 running on client and server, under the CC0 1.0 Universal license and not open source. Recycle Iron targets 1.20 – 1.21 on Fabric, runs on client and server, and is released under the MIT License without being open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Rusty Moss | Fabric | 1.20.1 | Client and server | 2025-05-23 |
| Craftable XP Nuggets [Create] | Fabric | 1.20.1 | Client and server | 2024-12-21 |
| Better Iron Smelting | Fabric | 1.20.1 | Client and server | 2023-07-14 |
| Recycle Iron | Fabric | 1.20 – 1.21 | Client and server | 2024-06-21 |
Questions
Does Rusty Moss need Fabric API?
Does the server need Rusty Moss installed?
Which game versions does Rusty Moss support?
Can rusty moss be harvested with any tool?
In the catalog
Rusty Moss is one of 8,499 Technology mods on ModsFinder, and one of 4,201 Technology mods for Fabric. 34,764 mods support Minecraft 1.20.1.
More from wdfeer
Similar mods
What the author says
The magic number affects the chance at which the rusty nuggets spawn.
Official listing
- Modrinth page
- modrinth.com/mod/rusty_moss
- Owner
- wdfeer
- Published
- 2025-05-23
- Updated on Modrinth
- 2025-05-23
- Facts verified
- 2026-10-15