
plugin
Altar SMPMinecraft plugin for 1.21.11
Legendary weapons plugin for Minecraft 1.21.x Adds powerful legendary weapons with custom textures and abilities to enhance your SMP experience.
- Latest version
- 1.1
- Minecraft
- 1.21 to 1.21.11
- Java
- Java 21+
- Platforms
- Spigot, Purpur, Paper
- Licence
- MIT
- Downloads
- 10.1k
- Updated
- 7 mo ago
- Available on
- Modrinth
Host Altar SMP servers
One click and Altar SMP is installed on a Paper or Purpur server built for it.
- 1.21.11
- Spigot
- Purpur
- Paper
- One click plugin install
- Paper and Purpur ready
- Automatic updates
- NVMe SSD
Minecraft versions
Every version Altar SMP declares support for, newest first, with the Java runtime that version needs.
| Minecraft | Through | Java | Evidence | Released |
|---|---|---|---|---|
| 1.21.11 | Spigot, Purpur, Paper | 21+ | declared | 9 Dec 2025 |
| 1.21.10 | Paper, Spigot, Purpur | 21+ | declared | 7 Oct 2025 |
| 1.21.9 | Purpur, Spigot, Paper | 21+ | declared | 30 Sept 2025 |
| 1.21.8 | Purpur, Spigot, Paper | 21+ | declared | 17 Jul 2025 |
| 1.21.7 | Purpur, Spigot, Paper | 21+ | declared | 30 Jun 2025 |
| 1.21.6 | Paper, Purpur, Spigot | 21+ | declared | 17 Jun 2025 |
| 1.21.5 | Spigot, Purpur, Paper | 21+ | declared | 25 Mar 2025 |
| 1.21.4 | Paper, Spigot, Purpur | 21+ | declared | 3 Dec 2024 |
| 1.21.3 | Paper, Spigot, Purpur | 21+ | declared | 23 Oct 2024 |
| 1.21.2 | Spigot, Purpur, Paper | 21+ | declared | 22 Oct 2024 |
| 1.21.1 | Paper, Spigot, Purpur | 21+ | declared | 8 Aug 2024 |
| 1.21 | Spigot, Purpur, Paper | 21+ | declared | 13 Jun 2024 |
Download
From Altar SMP’s own host. Nothing is re-hosted here.
AltarSMP-1.0.0.jar · 0.2 MB · for 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4 +7 more
7b87b9b6e076…Older versions1Hide older versions
- 1.0.02 Feb 20261.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4 +7 more0.2 MB254 downloads
7b87b9b6e076…Get
Frequently asked
Does Altar SMP work on Minecraft 1.21.11?
Yes. 1.21.11 is the newest Minecraft version Altar SMP 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 Altar SMP support?
Everything the author has declared, from 1.21 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 Altar SMP on the client or the server?
The server only. Players join with an ordinary Minecraft client and install nothing.
Which platform or loader does Altar SMP support?
Spigot, Purpur, Paper. 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 Altar SMP?
On the newest Minecraft version it supports, Java 21 or newer. The requirement comes from the Minecraft version you run rather than from the plugin itself, so on an older supported Minecraft the answer is that version's Java, not this one.
What licence is Altar SMP 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 Altar SMP?
Choose the release variant for your server platform. Paper, Spigot, Purpur and Bukkit files go in the server's plugins folder; Fabric, Forge, NeoForge and Quilt files go in the mods folder. Restart after installing and check that the Minecraft version matches your server.
Where do I download Altar SMP 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. The download link goes to the source recorded for that release; verify the publisher, filename and 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? .

