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Altar S2 Arc1Minecraft plugin for 1.21.11

A Paper 1.21+ plugin that adds custom altars, mythic weapons, abilities, recipes, custom items, and progression systems.

server onlynewest supported 1.21.11Game MechanicsMagicMinigame
Latest version
1.4.1
Minecraft
1.21 to 1.21.11
Java
Java 21+
Platform
Paper
Licence
LicenseRef-All-Rights-Reserved
Downloads
1.5k
Updated
2 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Altar S2 Arc1 servers

One click and Altar S2 Arc1 is installed on a Paper or Purpur server built for it.

  • 1.21.11
  • Paper
  • One click plugin install
  • Paper and Purpur ready
  • Automatic updates
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version Altar S2 Arc1 declares support for, newest first, with the Java runtime that version needs.

Other plugins
MinecraftThroughJavaEvidenceReleased
1.21.11Paper21+declared9 Dec 2025
1.21.10Paper21+declared7 Oct 2025
1.21.9Paper21+declared30 Sept 2025
1.21.8Paper21+declared17 Jul 2025
1.21.7Paper21+declared30 Jun 2025
1.21.6Paper21+declared17 Jun 2025
1.21.5Paper21+declared25 Mar 2025
1.21.4Paper21+declared3 Dec 2024
1.21.3Paper21+declared23 Oct 2024
1.21.2Paper21+declared22 Oct 2024
1.21.1Paper21+declared8 Aug 2024
1.21Paper21+declared13 Jun 2024

Download

From Altar S2 Arc1’s own host. Nothing is re-hosted here.

1.4.1release30 Jul 2026

Altars2.jar · 3.7 MB · for 1.21.11, 1.21.10, 1.21.9, 1.21.8, 1.21.7 +7 more

Download latest
00c972392ad1…
Older versions5
  • 1.430 Jul 20261.21.11, 1.21.10, 1.21.9, 1.21.8, 1.21.7 +7 more3.7 MB13 downloads00c972392ad1…Get
  • 1.315 Jul 20261.21.11, 1.21.10, 1.21.9, 1.21.8, 1.21.7 +7 more3.7 MB441 downloads24a86cb49031…Get
  • 1.210 Jul 20261.21.11, 1.21.10, 1.21.9, 1.21.8, 1.21.7 +7 more3.7 MB164 downloads35c313b10d4c…Get
  • 1.19 Jul 20261.21.11, 1.21.10, 1.21.9, 1.21.8, 1.21.7 +7 more3.7 MB62 downloads9cbf8bb7feb9…Get
  • 1.08 Jul 20261.21.11, 1.21.10, 1.21.9, 1.21.8, 1.21.7 +7 more3.7 MB43 downloads8c37bdaac517…Get

Frequently asked

Does Altar S2 Arc1 work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version Altar S2 Arc1 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 S2 Arc1 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 S2 Arc1 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 S2 Arc1 support?

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 S2 Arc1?

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 S2 Arc1 under?

LicenseRef-All-Rights-Reserved, 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 S2 Arc1?

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 S2 Arc1 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.

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Details from Modrinth, where the author last updated it on 30 Jul 2026. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .