Outpost Pacifier
by KURONAMI
Outpost Pacifier lets a server owner mark a square zone where natural hostile spawns are cancelled, such as a base built next to a pillager outpost.
What it does
Zones are axis-aligned square columns with a chosen center and a Y range, and they persist across restarts. Inside a pacified zone, natural hostile spawns from world generation are cancelled. Spawns outside the zone are left alone, so the rest of the world behaves as before. The vanilla spawn toggles are global, which is why a per-area option is useful when a base sits beside a structure that keeps producing hostiles.
The mod only cancels natural world-generation spawns, including patrols, raids, structure-placed mobs, reinforcements and spawners. Trial chamber spawn eggs and mobs that already exist are not removed, and the marking is done once per zone. Up to 256 zones can be kept, and the mod hooks the vanilla spawn finalization step through a mixin, with no custom blocks, items or config screen. The mod requires Fabric API, runs on the server only, and is published for 1.20.1 and 1.21.1 on Fabric, Forge and NeoForge.
Key features
Pacified zones
A zone stops natural hostile spawning inside its square columns, and the change can be reversed at any time.
Persistent zone list
Each zone is stored, so pacified areas are still in place after the server restarts.
Targeted spawn filtering
Only natural world-generation spawns are cancelled, leaving the rest of the world untouched.
Capacity of 256 zones
A single world can hold up to 256 pacified zones at once.
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 and modpack authors who want hostile spawns stopped in chosen places without changing the spawn rules of the whole world.
How it compares
Project Pillager is server-side only, has a CC0 1.0 Universal license and is not open source, with files for 1.20.1 – 26.1.2 on Fabric, Forge and NeoForge. Safe Zone is a server-required, client-optional mod with All rights reserved licensing, published for 1.21 – 1.21.4 on Fabric, Forge, NeoForge and Quilt. Outpost Pacifier is server-side only, has All rights reserved licensing and is not open source, with files for 1.20.1 and 1.21.1 on Fabric, Forge and NeoForge.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Outpost Pacifier | Fabric, Forge and NeoForge | 1.20.1 – 1.21.1 | Server-side only | 2026-05-17 |
| Project Pillager | Fabric, Forge and NeoForge | 1.20.1 – 26.1.2 | Server-side only | 2026-08-30 |
| Safe Zone | Fabric, Forge, NeoForge and Quilt | 1.21 – 1.21.4 | Server required, client optional | 2025-01-29 |
Questions
Does Outpost Pacifier need Fabric API?
Does the mod have to be installed on the client?
Are zones kept after a restart?
Which game versions have files?
In the catalog
Outpost Pacifier is one of 8,016 Management mods on ModsFinder, and one of 5,930 Management mods for Fabric. 32,366 mods support Minecraft 1.21.1.
More from KURONAMI
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What the author says
Mark a zone and natural mob spawning inside it stops — permanently and reversibly. For when you've found a base spot next to a pillager outpost (or any structure) that won't stop spawning hostiles. Vanilla has no per-area spawn toggle, and datapack workarounds are global and clunky. Outpost Pacifier silences a…
Official listing
- Modrinth page
- modrinth.com/mod/outpost-pacifier
- Owner
- KURONAMI
- Published
- 2026-05-17
- Updated on Modrinth
- 2026-05-17
- Facts verified
- 2026-10-15
