
mod
Custom Mob SpawnsMinecraft mod for 1.21.1
Simple configurable mob spawning.
- Latest version
- 1.1.0
- Minecraft
- 1.19.3 to 1.21.1
- Java
- Java 21+
- Loader
- Fabric
- Licence
- MIT
- Downloads
- 118.5k
- Updated
- 2 y ago
- Available on
- Modrinth
Host Custom Mob Spawns servers
One click and Custom Mob Spawns is installed with the right loader, on hardware built for it.
- 1.21.1
- Fabric
- One click mod install
- Loader matched for you
- Ryzen CPUs
- NVMe SSD
Screenshots
Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.
Minecraft versions
Every version Custom Mob Spawns declares support for, newest first, with the Java runtime that version needs.
| Minecraft | Through | Java | Evidence | Released |
|---|---|---|---|---|
| 1.21.1 | Fabric | 21+ | declared | 8 Aug 2024 |
| 1.21 | Fabric | 21+ | declared | 13 Jun 2024 |
| 24w20a | Fabric | 21+ | declared | 15 May 2024 |
| 24w19b | Fabric | 21+ | declared | 10 May 2024 |
| 24w19a | Fabric | 21+ | declared | 10 May 2024 |
| 24w18a | Fabric | 21+ | declared | 3 May 2024 |
| 1.20.6 | Fabric | 21+ | declared | 29 Apr 2024 |
| 1.20.5 | Fabric | 21+ | declared | 23 Apr 2024 |
| 1.20.4 | Fabric | 17+ | declared | 7 Dec 2023 |
| 1.20.3 | Fabric | 17+ | declared | 4 Dec 2023 |
| 1.20.2 | Fabric | 17+ | declared | 20 Sept 2023 |
| 1.20.1 | Fabric | 17+ | declared | 12 Jun 2023 |
| 1.20 | Fabric | 17+ | declared | 2 Jun 2023 |
| 1.19.4 | Fabric | 17+ | declared | 14 Mar 2023 |
| 1.19.3 | Fabric | 17+ | declared | 7 Dec 2022 |
Download
From Custom Mob Spawns’s own host. Nothing is re-hosted here.
custom-mob-spawns-1.1.0.jar · 0.5 MB · for 1.21, 1.21.1
97c1640705b5…Older versions6Hide older versions
- 1.0.45 May 20241.19.3, 1.19.4, 1.20, 1.20.1, 1.20.20.5 MB111.6k downloads
a53842281516…Get - 1.0.326 Apr 20241.19.3, 1.19.4, 1.20, 1.20.1, 1.20.20.5 MB210 downloads
b62d296a93bf…Get - 1.0.218 Apr 20241.19.3, 1.19.4, 1.20, 1.20.1, 1.20.20.5 MB195 downloads
6c1d050da08f…Get - 1.0.110 Apr 20241.19.3, 1.19.4, 1.20, 1.20.1, 1.20.20.5 MB174 downloads
9874e7d44cee…Get - 1.0.1s19 Apr 20241.19.3, 1.19.4, 1.20, 1.20.1, 1.20.20.5 MB134 downloads
99ad591143df…Get - 1.0.08 Apr 20241.19.3, 1.19.4, 1.20, 1.20.1, 1.20.20.5 MB135 downloads
ca959d1456d8…Get
Frequently asked
Does Custom Mob Spawns work on Minecraft 1.21.1?
Yes. 1.21.1 is the newest Minecraft version Custom Mob Spawns declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.
Which Minecraft versions does Custom Mob Spawns support?
Everything the author has declared, from 1.19.3 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.
Which loader does Custom Mob Spawns need?
Fabric. A build for one loader will not load on another, so this is the first thing to check before the Minecraft version.
Which Java version do I need for Custom Mob Spawns?
Java 21 or newer, because that is what the newest Minecraft release it supports requires. The requirement comes from the game rather than from the mod itself.
What licence is Custom Mob Spawns under?
MIT, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.
How do I install Custom Mob Spawns?
Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.
Where do I download Custom Mob Spawns safely?
From the author's own page on Modrinth, which is where the data here is synced from. MCReference never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.
Works on the same versions
Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.
Is this information wrong or missing something? .

