
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.
Most recently published release
custom-mob-spawns-1.1.0.jar · 0.5 MB · for 1.21.1, 1.21 · Fabric
97c1640705b5…Older versions6Hide older versions
- 1.0.45 May 202424w20a, 24w19b, 24w19a, 24w18a, 1.20.6 +8 more0.5 MB111.6k downloads
a53842281516…Get - 1.0.326 Apr 20241.20.6, 1.20.5, 1.20.4, 1.20.3, 1.20.2 +4 more0.5 MB210 downloads
b62d296a93bf…Get - 1.0.218 Apr 20241.20.5, 1.20.4, 1.20.3, 1.20.2, 1.20.1 +3 more0.5 MB195 downloads
6c1d050da08f…Get - 1.0.110 Apr 20241.20.4, 1.20.3, 1.20.2, 1.20.1, 1.20 +2 more0.5 MB174 downloads
9874e7d44cee…Get - 1.0.1s19 Apr 20241.20.4, 1.20.3, 1.20.2, 1.20.1, 1.20 +2 more0.5 MB134 downloads
99ad591143df…Get - 1.0.08 Apr 20241.20.4, 1.20.3, 1.20.2, 1.20.1, 1.20 +2 more0.5 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 platform or loader does Custom Mob Spawns support?
Fabric. A build for one platform or loader will not necessarily 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?
Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.
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?
Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.
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? .

