Mob Conduit
by TarmacSr
Mob Conduit is a server-side mod that stops hostile mobs from spawning in a radius around a conduit-shaped structure built from netherite and obsidian blocks.
What it does
A conduit frame is assembled from netherite blocks in three rings, with an obsidian middle and an end crystal placed in it. The full 42-block frame gives a 128-block radius, and a 16-block frame gives a 64-block radius. Inside that radius, natural hostile spawns stop, while spawners, trial spawners, spawn eggs, breeding and summoning keep working, so a mob farm placed inside still functions. Passive and neutral mobs are ignored.
Hostile mobs already inside the radius when the conduit is lit are removed rather than killed, so they leave no drops or XP orbs. Removals are staggered across several ticks, which keeps even a few hundred mobs from causing a lag spike on the server. A config option can turn drops back on, and the spawn suppression can be switched off on its own if a server only wants the removal behavior.
The mod is built from vanilla blocks and runs on Fabric or NeoForge with Fabric API required. It is server-side only, so players join without installing anything. The code is open source under the MIT License, and the project publishes its source code and issue tracker.
Key features
Configurable conduit frame
A three-ring frame of netherite blocks, with obsidian and an end crystal at the center, sets the spawn suppression radius.
Hostile spawn suppression
Natural hostile spawns stop inside the radius, while spawners, trial spawners and mob farms continue to work.
Gradual mob removal
Hostile mobs already inside the radius are removed over several ticks, with no drops or XP orbs unless a config option enables them.
Open-air placement
The conduit works in the open air, so it needs no enclosed room to take effect.
Gallery
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
Use cases
Who it’s for: Server owners who want to limit hostile spawns around a base or build area, and players who want a late-game project after finishing the main game.
How it compares
Better Conduit Placement covers Fabric, Forge, NeoForge and Quilt for 1.16.5 – 26.3, is server-side only and is under All rights reserved, so it is not open source. Zero Delay Crystals is client-side only, released under the MIT License and published for 1.21.1 – 1.21.11 on Fabric. Breakable Blocks is open source under the MIT License for 1.21 – 1.21.11 and runs on both client and server.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Mob Conduit | Fabric and NeoForge | 26.2 | Server-side only | 2026-08-04 |
| Better Conduit Placement | Fabric, Forge, NeoForge and Quilt | 1.16.5 – 26.3 | Server-side only | 2026-10-02 |
| Zero Delay Crystals | Fabric | 1.21.1 – 1.21.11 | Client-side only | 2026-07-30 |
| Breakable Blocks | Fabric | 1.21 – 1.21.11 | Client and server | 2026-03-04 |
Questions
Does Mob Conduit require Fabric API?
Do players need to install Mob Conduit?
Are dropped items and XP from removed mobs kept?
In the catalog
Mob Conduit is one of 29,952 Game mechanics mods on ModsFinder, and one of 19,630 Game mechanics mods for Fabric. 13,894 mods support Minecraft 26.2.
Similar mods
What the author says
Stops hostile mobs spawning around it. Made out of vanilla blocks. Server side only, so players don't install anything.
Official listing
- Modrinth page
- modrinth.com/mod/mob-conduit
- Owner
- TarmacSr
- Published
- 2026-07-29
- Updated on Modrinth
- 2026-08-04
- Facts verified
- 2026-10-15