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UNOFFICIAL SMPOnline S5 Ultra Epic Optimized Edition ModpackMinecraft modpack

An extension of the official SMPOnline Season 5 modpack that adds more optimizations, quality of life upgrades, and optional mods.

client only
Latest version
1.2.1
Minecraft
no version declared
Java
follows the game
Loaders
none declared
Licence
LicenseRef-All-Rights-Reserved
Downloads
1.1k
Updated
11 mo ago
Available on
Modrinth

Download

From UNOFFICIAL SMPOnline S5 Ultra Epic Optimized Edition Modpack’s own host. Nothing is re-hosted here.

1.2.1alpha6 Oct 2025

dev.mrpack · 0.4 MB · for 1.21.4

Download latest
edce26b1cefd…
Older versions4
  • 1.2.02 Sept 20251.21.40.4 MB124 downloads29077d91c5a4…Get
  • 1.1.123 Aug 20251.21.40.4 MB78 downloadsceb8f8fa8a1b…Get
  • 1.19 Aug 20251.21.40.4 MB103 downloadsf75171acc419…Get
  • 1.0.028 Jul 20251.21.40.5 MB35 downloads1344ac39238b…Get

Frequently asked

Do I need to install UNOFFICIAL SMPOnline S5 Ultra Epic Optimized Edition Modpack on the client or the server?

The client only. There is nothing to install on the server side. That is the author's declared design, not a guarantee for every server: one running anti-cheat or missing a counterpart mod can still object.

What licence is UNOFFICIAL SMPOnline S5 Ultra Epic Optimized Edition Modpack 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 UNOFFICIAL SMPOnline S5 Ultra Epic Optimized Edition Modpack?

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 UNOFFICIAL SMPOnline S5 Ultra Epic Optimized Edition Modpack 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.

Which Minecraft versions does UNOFFICIAL SMPOnline S5 Ultra Epic Optimized Edition Modpack work on?

The author has not declared a supported version in the metadata we sync, so there is nothing here we can state as fact. Check the project's own page before installing it, and treat an old modpack with no declared version as untested on modern Minecraft.

Last checked 2 mo ago against Modrinth. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Not indexed yet. Score 49 against a threshold of 55. The page still exists and is still linked; it simply carries noindex until we hold more.

Is this information wrong or missing something? .