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modpack

Unchanging SMPMinecraft modpack for 1.21.1

This is the modpack for The Unchanging SMP, a private smp for a group of friends

client and servernewest supported release 1.21.1TechnologyAdventureOptimizationMultiplayer
Latest version
1.23
Minecraft
1.21.1
Loader
NeoForge
Licence
LicenseRef-All-Rights-Reserved
Downloads
648
Updated
19 d ago
Available on
Modrinth
Space NodeOur hosting

Host Unchanging SMP servers

One click and Unchanging SMP is installed with the right loader, on hardware built for it.

  • 1.21.1
  • NeoForge
  • One click modpack install
  • Dependencies handled
  • Tuned startup flags
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

Every version Unchanging SMP declares support for, newest first, with the Java runtime that version needs.

Other modpacks
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge21+declared8 Aug 2024

Download

From Unchanging SMP’s own host. Nothing is re-hosted here.

Most recently published release

1.23release23 Oct 2026

Unchanging SMP 1.23.mrpack · 88.5 MB · for 1.21.1 · NeoForge

Download this release
cf53860d77a8…
Older versions22
  • 1.226 Oct 20261.21.188.4 MBd7afa5b8cbfc…Get
  • 1.2120 Sept 20261.21.188.4 MB55d80f46645b…Get
  • 1.2018 Sept 20261.21.188.4 MB54b657a2bb03…Get
  • 1.1910 Sept 20261.21.133 KBe9a392211593…Get
  • 1.1826 Aug 20261.21.190.5 MB8b694ecf9555…Get
  • 1.1719 Aug 20261.21.190.9 MB89fc2a555c54…Get
  • 1.1619 Aug 20261.21.190.8 MB14fd77b61012…Get
  • 1.1517 Aug 20261.21.190.8 MBe625982fa4f3…Get
  • 1.1416 Aug 20261.21.190.8 MB0edbbb190eb8…Get
  • 1.1212 Aug 20261.21.10.2 MB8aee88658db1…Get
  • 1.118 Aug 20261.21.192.5 MB66376973da40…Get
  • 1.104 Aug 20261.21.1225.0 MBac2019283f16…Get
  • 1.929 Jul 20261.21.1224.9 MB10 downloads038737f60f31…Get
  • 1.827 Jul 20261.21.1224.9 MB12 downloadse27c1374c11e…Get
  • 1.726 Jul 20261.21.1224.9 MB7 downloadsa85e2330a867…Get
  • 1.622 Jul 20261.21.1224.9 MB14 downloadsc4f44c804b1c…Get
  • 1.522 Jul 20261.21.1224.9 MB6 downloadsdc70a4d755d1…Get
  • 1.422 Jul 20261.21.1224.9 MB7 downloadse9ba66fbe725…Get
  • 1.314 Jul 20261.21.1224.9 MB9 downloads16272d3868a8…Get
  • 1.212 Jul 20261.21.1224.9 MB6 downloads0bdf5ed1fa11…Get
  • 1.110 Jul 20261.21.1224.9 MB4 downloads28e889c59917…Get
  • 1.09 Jul 20261.21.1132.8 MB5 downloads9be6f6f0a7ba…Get

Frequently asked

Does Unchanging SMP work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Unchanging 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.

Do I need to install Unchanging SMP on the client or the server?

Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.

Which platform or loader does Unchanging SMP support?

NeoForge. 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 Unchanging SMP?

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 Unchanging SMP 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 Unchanging SMP?

Use a launcher that imports packs, such as Prism Launcher, the Modrinth App or the CurseForge app, and open the pack file with it. The launcher installs the right loader and mods for you; installing a pack's mods by hand is the error-prone way.

Where do I download Unchanging 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. 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.

Details from Modrinth, where the author last updated it on 23 Oct 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .