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modpack

FTSIOMinecraft modpack

Actually Optimizing Minecraft for the newer versions (1.21.1+)

client only
Latest version
1.21.8-r1
Minecraft
no version declared
Java
follows the game
Loaders
none declared
Licence
LicenseRef-All-Rights-Reserved
Downloads
282
Updated
14 mo ago
Available on
Modrinth

Download

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

1.21.8-r1release31 Jul 2025

FTSIO 1.21.8-r1.mrpack · 22 KB · for 1.21.8

Download latest
ba76b6f1a527…
Older versions5
  • 1.21.7-r131 Jul 20251.21.722 KB42 downloadsd3e00e378b00…Get
  • 1.21.6-r131 Jul 20251.21.622 KB35 downloadsefac5d2dbebf…Get
  • 1.21.5-r131 Jul 20251.21.521 KB36 downloadscdf2084ca829…Get
  • 1.21.4-r131 Jul 20251.21.421 KB43 downloadsffb26c1b8ddc…Get
  • 1.21.1-r131 Jul 20251.21.121 KB51 downloads2ad68602cf41…Get

Frequently asked

Do I need to install FTSIO 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 FTSIO 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 FTSIO?

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 FTSIO 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 FTSIO 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.

Details from Modrinth, where the author last updated it on 31 Jul 2025. 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 40 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? .