Spawnix
by IonSlaun
Spawnix lets server owners control mob spawning in a Fabric server, replacing Minecraft's vanilla spawning rules with settings that change in real time.
What it does
Spawning is handled by Minecraft's own spawning engine, and Spawnix works by changing how that engine is driven rather than adding a separate spawn system. Changes take effect while the server runs, so commands can adjust spawning without a game or server restart. Dimension, weather and biome conditions can each be set for spawning, covering the Overworld, the Nether, the End and modded dimensions.
The mod raises the mob cap for monsters to 200, which allows more hostile mobs to exist in a loaded area at once. Creepers can be made to spawn much more often, to persist longer, or to stop spawning in deserts, and the examples in the documentation show only the most basic setups. Spawnix is built to stay compatible with mods that add mobs and biomes, and future versions are expected to extend that compatibility.
Spawnix is server-side only, so players join without installing anything. It runs on Fabric for 1.20, and the 1.0.0 file is published on the beta channel. The code is under All rights reserved and is not open source.
Key features
Real-time spawn control
Spawn rules can be changed while the server runs, with no restart needed for the adjustments.
Monster mob cap
The monster cap is raised to 200, letting more hostile mobs exist in a loaded area.
Creeper spawn settings
Creeper spawning can be made more frequent, longer lasting, or blocked from spawning in deserts.
Condition-based spawning
Spawning can depend on dimension, including modded dimensions, and on weather such as rain, thunder or clear skies.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Who it’s for: Server owners who want to change how hostile mobs spawn on a Fabric 1.20 server, and who are willing to set rules through commands and configuration.
How it compares
Server-side Creeper Control is server-side only, open source under the MIT License and published for 1.20.4 on Fabric. Nocreepers is server-side only, not open source, and published for 1.21.11 on Fabric, so it targets a much later version. Proper Mobcap Modifier is server-side only, open source under the MIT License, and covers 1.20 – 1.20.4 on Fabric, making it the closest in version range.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Spawnix | Fabric | 1.20 | Server-side only | 2026-01-22 |
| Server-side Creeper Control | Fabric | 1.20.4 | Server-side only | 2024-04-13 |
| Nocreepers | Fabric | 1.21.11 | Server-side only | 2026-04-24 |
| Proper Mobcap Modifier | Fabric | 1.20 – 1.20.4 | Server-side only | 2024-02-18 |
Questions
Does Spawnix need to be installed on the client?
Which loader and version does Spawnix support?
Can Spawnix change spawning in modded dimensions?
In the catalog
Spawnix is one of 11,058 Mobs mods on ModsFinder, and one of 5,189 Mobs mods for Fabric. 10,288 mods support Minecraft 1.20.
More from IonSlaun
Similar mods
What the author says
No weird systems. No artificial mechanics. Just clean, natural, real-time control. Increases the mobcap limit for monsters to 200.
Official listing
- Modrinth page
- modrinth.com/mod/spawnix
- Owner
- IonSlaun
- Published
- 2026-01-22
- Updated on Modrinth
- 2026-01-22
- Facts verified
- 2026-10-15