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modpack

Cobblemon Callisto Optimized + QoLMinecraft modpack for 1.21.1

Cobblemon Modpack focusing on Optimization and QOL, made for the Cobblemon Callisto Server

client onlynewest supported release 1.21.1AdventureOptimizationMultiplayer
Latest version
1.5.2
Minecraft
1.21.1
Java
Java 21+
Loader
Fabric
Licence
LicenseRef-All-Rights-Reserved
Downloads
2.2k
Updated
23 d ago
Available on
Modrinth

Minecraft versions

Every version Cobblemon Callisto Optimized + QoL declares support for, newest first, with the Java runtime that version needs.

Other modpacks
MinecraftThroughJavaEvidenceReleased
1.21.1Fabric21+declared8 Aug 2024

Download

From Cobblemon Callisto Optimized + QoL’s own host. Nothing is re-hosted here.

Most recently published release

1.5.2release16 Oct 2026

Cobblemon Callisto Optimized + QoL 1.5.2.mrpack · 83.0 MB · for 1.21.1 · Fabric

Download this release
6f60c7734fcb…
Older versions10
  • 1.5.113 Oct 20261.21.183.0 MB942f6d32b51f…Get
  • 1.5.024 Sept 20261.21.183.0 MB693d31755b45…Get
  • 1.4.122 Sept 20261.21.183.0 MB5321adb7c8ea…Get
  • 1.4.021 Sept 20261.21.183.0 MB94897ae34267…Get
  • 1.2.34 Feb 20261.21.16.6 MB789 downloads760c01c202dc…Get
  • 1.2.225 Jan 20261.21.18.1 MB153 downloadsaf7f34953726…Get
  • 1.2.11 Dec 20251.21.18.1 MB463 downloads5825b05e5b4f…Get
  • 1.2.028 Nov 20251.21.18.1 MB131 downloads491fb5919551…Get
  • 1.1.021 Nov 20251.21.159 KB82 downloads387126853575…Get
  • 1.0.021 Nov 20251.21.159 KB31 downloads8db60e255243…Get

Frequently asked

Does Cobblemon Callisto Optimized + QoL work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Cobblemon Callisto Optimized + QoL 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 Cobblemon Callisto Optimized + QoL 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.

Which platform or loader does Cobblemon Callisto Optimized + QoL support?

Fabric. 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 Cobblemon Callisto Optimized + QoL?

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 Cobblemon Callisto Optimized + QoL 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 Cobblemon Callisto Optimized + QoL?

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 Cobblemon Callisto Optimized + QoL 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.

Re-ConsoleA continued Legacy Console Edition experience, expanded upon with modern Java Edition content and QoL! (An Official Legacy4J Project)MAX FPS: Optimized🚀 MAX FPS WITHOUT UNNECESSARY MODS! Only 16 optimization mods - NOTHING EXTRA! ✅ ALL MAJOR VERSIONS ⚡ INSTALLS ON ANY LAUNCHER! (Guide below)PacktrixPre-packed Official Modpack containing Patrix Resource Pack for easy install using Fabric/Quilt.Simply Optimized ReloadedAn unofficial port of Simply Optimized built to support every major mod loader and stay current with the newest versions of Minecraft.FPS+ PvP Boost | Ultimate FPS & Combat Client [ Every Version ]Ultra-lightweight FPS boost & PvP modpack for Fabric. Boost FPS on low-end PCs with Sodium optimizations, lower input lag, cleaner visuals, and combat HUD tweaks built for Hypixel Bedwars, Duels, PotPvP & CPVP. Maximize frames and dominate fights.香草精华 Vanilla EssenceFaithful to the origional. Better vanilla experience without any new blocks or mobs

Details from Modrinth, where the author last updated it on 16 Oct 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

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