antispawn
by numenmc
antispawn lets server owners block mob spawning inside named rectangular regions, so players can keep certain areas free of hostile mobs.
What it does
Regions are defined by two corner coordinates and an id, and any mob that would spawn inside one is prevented from appearing there. Specific mob types can also be kept from spawning. Permission checks are supported through the Fabric Permissions API, so access to the commands can be granted without operator rights.
The mod runs on a server only, so players join without installing anything. It is published for Fabric alone, across six release versions 1.21.6 – 1.21.11, with 1.1+1.21.11 for 1.21.11 as the latest file. The code is not open source; it is released under All rights reserved, while the source and issue tracker are public.
Key features
Spawn-free regions
Rectangular regions prevent mobs from spawning inside their bounds, keeping chosen areas clear.
Per-mob blocking
Specific mob types can be prevented from spawning, independent of the regions they appear in.
Region commands
Operators can add, delete, list and check regions, with info and check commands for players and admins.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Nocreepers is also server-side and Fabric-only for 1.21.11, but it is not open source under All rights reserved. MobsFilter is server-side for 1.21.11 under the MIT License, and is open source. CobbleSpawnRegions is server-side for 1.21.1 under the GNU Lesser General Public License v3.0 only, and is open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| antispawn | Fabric | 1.21.6 – 1.21.11 | Server-side only | 2025-12-15 |
| Nocreepers | Fabric | 1.21.11 | Server-side only | 2026-04-24 |
| MobsFilter | Fabric | 1.21.11 | Server-side only | 2026-03-21 |
| CobbleSpawnRegions | Fabric | 1.21.1 | Server-side only | 2026-09-06 |
Questions
Does antispawn need to be installed on players' clients?
In the catalog
antispawn is one of 11,058 Mobs mods on ModsFinder, and one of 5,189 Mobs mods for Fabric. 19,862 mods support Minecraft 1.21.11.
Similar mods
What the author says
antispawn is a Fabric mod that prevents mobs from spawning in certain areas called regions. Command Description Permission /antispawn info Returns information about your installation of antispawn OP Level: 0 /antispawn check Returns the name of the region the player is standing in OP Level: 0 /antispawn list Lists…
Official listing
- Modrinth page
- modrinth.com/mod/antispawn
- Owner
- numenmc
- Published
- 2025-07-22
- Updated on Modrinth
- 2025-12-15
- Facts verified
- 2026-10-15