
mod
npc-libMinecraft mod for 1.21.11
Simple & Extendable NPC library for Minecraft Java Edition Servers
- Latest version
- 3.0.0-beta.17
- Minecraft
- 1.21.4 to 1.21.11
- Java
- Java 21+
- Loader
- Fabric
- Licence
- MIT
- Downloads
- 6.4k
- Updated
- 8 mo ago
- Available on
- Modrinth
Host npc-lib servers
One click and npc-lib is installed with the right loader, on hardware built for it.
- 1.21.11
- 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 npc-lib declares support for, newest first, with the Java runtime that version needs.
| Minecraft | Through | Java | Evidence | Released |
|---|---|---|---|---|
| 1.21.11 | Fabric | 21+ | declared | 9 Dec 2025 |
| 1.21.10 | Fabric | 21+ | declared | 7 Oct 2025 |
| 1.21.9 | Fabric | 21+ | declared | 30 Sept 2025 |
| 1.21.8 | Fabric | 21+ | declared | 17 Jul 2025 |
| 1.21.7 | Fabric | 21+ | declared | 30 Jun 2025 |
| 1.21.6 | Fabric | 21+ | declared | 17 Jun 2025 |
| 1.21.5 | Fabric | 21+ | declared | 25 Mar 2025 |
| 1.21.4 | Fabric | 21+ | declared | 3 Dec 2024 |
Download
From npc-lib’s own host. Nothing is re-hosted here.
npc-lib-mod.jar · 0.2 MB · for 26.2
f95d66ae26bb…Older versions6Hide older versions
- 3.0.0-beta.169 Dec 20251.21.110.2 MB1.3k downloads
b171ebbe93e4…Get - 3.0.0-beta.156 Oct 20251.21.9, 1.21.100.2 MB920 downloads
5b3df752f456…Get - 3.0.0-beta.141 Oct 20251.21.90.2 MB39 downloads
e7ad70e6bfe9…Get - 3.0.0-beta1319 Jun 20251.21.6, 1.21.7, 1.21.80.2 MB2.2k downloads
676ff0142574…Get - 3.0.0-beta1219 Jun 20251.21.50.2 MB482 downloads
5f67a5d6e35e…Get - 3.0.0-beta1129 Jan 20251.21.40.2 MB1.5k downloads
045b1616104f…Get
Frequently asked
Does npc-lib work on Minecraft 1.21.11?
Yes. 1.21.11 is the newest Minecraft version npc-lib 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 npc-lib support?
Everything the author has declared, from 1.21.4 up to 1.21.11. The full list is in the table above, with the Java runtime each version needs next to it.
Do I need to install npc-lib on the client or the server?
The server only. Players join with an ordinary Minecraft client and install nothing.
Which loader does npc-lib 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 npc-lib?
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 npc-lib 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 npc-lib?
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 npc-lib 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? .

