Extended functionality
by Le_Kheyde_30
Extended functionality is a Fabric and Forge gameplay mod that changes how a set of vanilla blocks and items behave, from furnaces and campfires to fences and honeycomb.
What it does
Several small rules are added on top of vanilla behavior. Right-clicking one half of a double door opens both halves together. Rotten flesh placed in a furnace, blast furnace or campfire yields leather, and wool placed in a crafting table with a dye can produce yarn in the matching color. Raw ore blocks put into a blast furnace smelt the same way as their ore counterparts, and cobwebs can be burned by left-clicking them with a torch.
The mod also covers harvesting and crafting details. Nascent amethyst blocks drop when mined with Silk Touch, honeycomb blocks yield honeycombs in a crafting table, and the player may be able to jump over wooden fences and gates. Each change is a plain function of a block or item, so the mod suits survival worlds and multiplayer servers that want these conveniences without extra commands.
Installation needs Fabric API and Pehkui, which must be present on the server and on every player's client. Files are published for Fabric and Forge, with 1.0.0 for 1.21.8 as the latest Fabric build and 1.0.1 for 1.20.1 as the latest Forge build. The code is not open source; it is released under All rights reserved.
Key features
Double door pairing
Right-clicking one door of a double door opens or closes both halves at the same time.
Leather from rotten flesh
Rotten flesh placed in a furnace, blast furnace or campfire produces leather.
Yarn from wool
Wool blocks placed in a crafting table with a dye yield yarn in the matching color.
Smelting raw ore blocks
Raw ore blocks placed in a blast furnace smelt the same way the matching ore does.
Cobweb burning
Cobwebs are cleared by left-clicking them while holding a torch.
Silk Touch on nascent amethyst
Nascent amethyst blocks are harvested intact when mined with Silk Touch.
Honeycomb from honeycomb blocks
Honeycomb blocks give honeycombs when placed in a crafting table.
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 1
How it compares
Open Please is a server-side only Fabric, Forge and NeoForge mod for 1.20.1 – 1.21.10, released under the MIT License and open source, so players can join without installing it. Rotten Flesh into Leather covers only leather from rotten flesh for 1.20 – 26.1.2 under the MIT License and is not open source. Campfire Regen is server-side only, open source under the GNU General Public License v3.0 only, and published for 1.20.1 – 26.3.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Extended functionality | Fabric and Forge | 1.20.1 – 1.21.8 | Client and server | 2026-07-27 |
| Open Please | Fabric, Forge and NeoForge | 1.20.1 – 1.21.10 | Server-side only | 2025-11-05 |
| Rotten Flesh into Leather | Fabric, Forge and NeoForge | 1.20 – 26.1.2 | Not published | 2026-05-08 |
| Campfire Regen | Fabric, Forge and NeoForge | 1.20.1 – 26.3 | Server-side only | 2026-09-24 |
Questions
Does Extended functionality need Pehkui?
Do players need the mod if the server runs it?
Which game versions does the mod support?
In the catalog
Extended functionality is one of 3,545 Optimization mods on ModsFinder, and one of 2,575 Optimization mods for Fabric. 17,695 mods support Minecraft 1.21.8.
More from Le_Kheyde_30
Similar mods
Official listing
- Modrinth page
- modrinth.com/mod/extended-functionality
- Owner
- Le_Kheyde_30
- Published
- 2026-05-14
- Updated on Modrinth
- 2026-07-27
- Facts verified
- 2026-10-15