Alex's Mobs (Unofficial Port)
by Raguto
With this NeoForge port, players gain more than 85 new mobs for 1.21.1, built on the Citadel library that the port requires.
What it does
The port brings the Alex's Mobs creature set to Minecraft 1.21.1 on NeoForge. Its summary describes the added mobs as having a more stylized look than the vanilla creatures. Citadel (Unofficial Port) must be installed alongside it, and three other catalog mods, Evil Seagull, Fly High and Seagull Killer, require this mod in turn.
Alex's Mobs (Unofficial Port) runs on client and server, so both the server and every player need it. It is a community-maintained port of the original work by AlexModGuy and contributors, released under the GNU General Public License v3.0 only, and the source code is public. Files were first published on 2025-12-29 and last updated on 2026-01-26, with the latest NeoForge file at 1.22.17 for 1.21.1.
Key features
More than 85 new mobs
The mod adds a large set of new creatures to the game, each with its own behavior and appearance.
Stylized creature designs
The added mobs follow a distinct artistic style that sets them apart from the default creatures.
Citadel-based code
Shared functions come from the Citadel library, so that library must be installed for the mobs to load.
Public source code
The source is available to read, and the license allows changes under its terms.
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
Required by 3 mods
Use cases
Adding creatures to a survival world
Players who want more animals and monsters in a NeoForge 1.21.1 world can add the full set in one install.
Populating a server
Server owners can add the mobs to a shared world, provided every player also installs the mod.
Who it’s for: Players and server owners who run NeoForge 1.21.1 and want a large set of new creatures. Anyone who prefers the official build should know this is an unofficial port made while the team awaits an official update.
How it compares
Desert Behemoths: Sandworms! (Unofficial port) adds a single creature family for NeoForge 1.21.1 and is under the GNU Lesser General Public License v3.0 or later. EEEAB's Mobs [Unofficial] covers Fabric, Forge and NeoForge across 1.21.1 – 1.21.11, and is under the GNU Lesser General Public License v3.0 only. Both run on client and server, as this mod does.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Alex's Mobs (Unofficial Port) | NeoForge | 1.21.1 | Client and server | 2026-01-26 |
| Desert Behemoths: Sandworms! (Unofficial port) | NeoForge | 1.21.1 | Client and server | 2026-07-16 |
| EEEAB's Mobs [Unofficial] | Fabric, Forge and NeoForge | 1.21.1 – 1.21.11 | Client and server | 2026-09-28 |
Questions
Does Alex's Mobs (Unofficial Port) need another mod?
Does the server need this mod?
Is this port the official Alex's Mobs release?
Which loader and version does it support?
In the catalog
Alex's Mobs (Unofficial Port) is one of 11,058 Mobs mods on ModsFinder, and one of 4,974 Mobs mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
More from Raguto
Similar mods
What the author says
About This Port: This port updates Alex's Mobs to work with Minecraft 1.21.1 and the NeoForge mod loader. This is a community-maintained port and is not officially affiliated with the original Alex's Mobs developers. Original Mod: Alex's Mobs by AlexModGuy and contributors.
Official listing
- Modrinth page
- modrinth.com/mod/alexs-mobs-1.21.1
- Owner
- Raguto
- Published
- 2025-12-29
- Updated on Modrinth
- 2026-01-26
- Facts verified
- 2026-10-15