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Skyblock Ultra project artwork

Modrinth · Minecraft modpack

Skyblock Ultra

A modern Skyblock experience for Minecraft 1.21.5 featuring optimized textures, auto configuration loading, improved performance, and full Fabric compatibility.

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which Skyblock Ultra release should I use?

Updated 10 months ago
Latest stable file Skyblock Ultra 1.0.0
Game version 1.21.5
Loader Fabric 0.17.2

Skyblock Ultra 1.0.0 is a complete pack release for 1.21.5 with Fabric 0.17.2. Install it as its own launcher instance. If the creator publishes a separate server file, make sure it names this exact pack release. 30 mods in this pack file.

Pack setup

How should I set up Skyblock Ultra for players and a server?

Use Skyblock Ultra 1.0.0 as the pack version. Install the pack as its own launcher instance. The creator’s listing does not name a separate server file, so check the release notes before setting up a dedicated server. Do not upload the ordinary client folder blindly.

Client instance Install Skyblock Ultra 1.0.0
Dedicated server setup Match Skyblock Ultra 1.0.0
Pack loader Fabric 0.17.2

A pack is a matched client and server setup, not one mod with an install-side label. Keep its release, loader, manifest and overrides together.

Referenced mods 30
Client only 20
Server only 0
Not labelled 10

These numbers come from the pack file you chose. “Not labelled” means we don’t know which side it belongs on—not that it is safe everywhere. The file count is not a RAM estimate.

What are the server requirements for Skyblock Ultra?

Skyblock Ultra 1.0.0. Change the pack release and its contents or setup may change too.

30 mods in this pack file

The selected pack release is Skyblock Ultra 1.0.0. That file is for Minecraft 1.21.5 with Fabric 0.17.2. It contains 30 mod projects. The creator’s listing does not name a separate server file. Check their notes before using one, and do not upload an ordinary client folder or rebuild the pack mod by mod. A file count cannot tell us the right RAM, CPU or storage; size the server for the players and world you actually run.

About this project

What kind of pack is Skyblock Ultra?

🪐 Skyblock Ultra

A modern Skyblock experience built for Minecraft 1.21.5 (Fabric)

Skyblock Ultra redefines the traditional Skyblock gameplay with a clean, modern design, improved performance, and full Fabric mod compatibility.
Every feature, texture, and configuration has been optimized for a smooth, stable, and visually enhanced experience — no setup required.

✨ Key Features

🌌 Modern Skyblock foundation with rebalanced mechanics

⚙️ Fully compatible with Fabric 1.21.5 and major performance mods

🎨 Integrated texture pack loading system

🧾 Built-in configuration handling for simple customization

🚀 Optimized startup and load times

🔧 Pre-configured and ready to play instantly (no manual setup needed)

💡 Clean, lightweight structure designed for long-term modpack expansion

🧩 Changelog
🪙 Version 0.1.0 – Genesis

Initial release of Skyblock Ultra

Introduced a modern Skyblock experience with reworked mechanics and smoother gameplay

Built on Minecraft 1.21.5 using Fabric API

Added essential mods: Fabric Loader, Cloth Config, ModMenu

Basic setup screens and structure implemented

⚙️ Version 0.1.1 – System Cleanup

Reorganized source files (client/main separation)

Fixed missing client packages and compiler issues

Updated Gradle + Loom for 1.21.5 support

Removed duplicate resources (modid.mixins.json, icon.png)

Enhanced mod stability and build reliability

🎨 Version 0.1.2 – Texture & Configuration Update

Added automatic texture pack loading on startup

Improved configuration saving and loading system

Optimized resource management and file structure

Fixed broken textures and missing visual assets

Removed SkyCubed (causing crashes) to increase stability

Improved compatibility with Fabric ecosystem mods

🧭 Future Roadmap

🌍 Custom Skyblock progression system

🖥️ Redesigned UI and setup screens

⚡ Further performance improvements

🌐 Optional multiplayer support

Project description from Modrinth.

Mods in Skyblock Ultra 1.0.0

Open any mod on Modpacks.ch to check its files and dependencies.

architectury-16.1.4-fabric.jar SHA-1 7d26d978a4f64800f15363cebea7b26c79a33fa3 · Modrinth version ImZUcNzP · Project link unavailable Side not labelled
BetterF3-14.0.0-Fabric-1.21.5.jar SHA-1 656ff9376212cabb74ebdbb486e804cb5c759355 · Modrinth version dfWnohnD · Project link unavailable Client only
cloth-config-18.0.145-fabric.jar SHA-1 db73460f84cede7b5fc67dce7c38bbeb5444c63e · Modrinth version qA00xo1O · Project link unavailable Side not labelled
cookies-mod-1.4.0.jar SHA-1 3c4090957ada84b5e44295d5c083aea08ac34e41 · Modrinth version 107alniP · Project link unavailable Client only
entityculling-fabric-1.8.2-mc1.21.5.jar SHA-1 474a1acbcac4a54b7cc3ff6db3b7aa94a34af93e · Modrinth version S79XoZhx · Project link unavailable Client only
fabric-api-0.128.2+1.21.5.jar SHA-1 920dea0ac4ff08f539099215eace9fda3e3fb2e3 · Modrinth version kKEGlsne · Project link unavailable Side not labelled
fabric-language-kotlin-1.13.6+kotlin.2.2.20.jar SHA-1 05e9cc4108da5b50735fa6d8a79a18fcd5310d82 · Modrinth version i6MmXDwA · Project link unavailable Side not labelled
ferritecore-8.0.0-fabric.jar SHA-1 53d76354587cd1965b842fdce7cff965b5c52fe5 · Modrinth version CtMpt7Jr · Project link unavailable Side not labelled
Firmament-3.7.1+mc1.21.5.jar SHA-1 5a73117f07951ab5d43acc5b4ca73715279a8263 · Modrinth version tEDjiypt · Project link unavailable Client only
HypixelModAPI-1.0.1+build.1+mc1.21.jar SHA-1 a0c9329a6fe6741bb637e32bef57aa7defc82ccd · Modrinth version IkrpaHUp · Project link unavailable Client only
ImmediatelyFast-Fabric-1.9.7+1.21.5.jar SHA-1 7bc7380cbae85467d3f264d6a88dee77473bcdf5 · Modrinth version AJh4ziDx · Project link unavailable Client only
iris-fabric-1.8.11+mc1.21.5.jar SHA-1 3806a7c76347bcfd9f02b1317a5ddd1541bd24a7 · Modrinth version U6evbjd0 · Project link unavailable Client only
lithium-fabric-0.16.3+mc1.21.5.jar SHA-1 eaa7ef4e1dba9006dd216bb310eb8ec3dccd84bc · Modrinth version xcELvp6R · Project link unavailable Side not labelled
modelfix-1.21.5-1.12-fabric.jar SHA-1 aa85f1d826593001c56ca13d5c064bca21cfc900 · Modrinth version WcDxGReS · Project link unavailable Client only
modmenu-14.0.0-rc.2.jar SHA-1 cdcbe5d129ca9939c3c95a09b3d6fd1ed5513edd · Modrinth version T7GjZmwP · Project link unavailable Client only
modsettings-1.2.0+1.21.jar SHA-1 9c57f0934b5b1a70c7427b996074e328c59e9f0f · Modrinth version VuMclPY8 · Project link unavailable Client only
notenoughcrashes-fabric-4.4.9+1.21.5.jar SHA-1 5b46fdd356bf146376227d171b7acdef52061bec · Modrinth version CpOQ5Gmz · Project link unavailable Side not labelled
owo-lib-0.12.21+1.21.5.jar SHA-1 a0d0f5ba69fe67524931009bd72f4941d5f5d1b0 · Modrinth version xQbRMeoS · Project link unavailable Side not labelled
placeholder-api-2.6.4+1.21.5.jar SHA-1 db8f916f040cb21efc395ca9e4d988f8a75f42d4 · Modrinth version 8x0q8gHM · Project link unavailable Side not labelled
scaleme-2.1.1+1.21.5.jar SHA-1 a50e4f379c59c3f531d0c87b6a7ff70482dc6667 · Modrinth version LPaLsUgE · Project link unavailable Client only
skinlayers3d-fabric-1.9.0-mc1.21.5.jar SHA-1 fbad30613339b8d60b688e6f55956a5eabe6291f · Modrinth version jbuhRKxe · Project link unavailable Client only
skyblocker-5.6.0+1.21.5.jar SHA-1 7387a4f4466f7724eb91423b26858f4a9d1d5f1c · Modrinth version SJrUeqti · Project link unavailable Client only
SkyblockTweaks-0.1.0-Alpha.17+mc1.21.5.jar SHA-1 ed62937f5c2be57dc7a9399b7fd3cf76299d8d90 · Modrinth version 6JqrIiON · Project link unavailable Client only
SkyCofl-1.7.6-Fabric-1.21.5.jar SHA-1 edee857e7e51e483108f530205feff850d635486 · Project link unavailable Client only
SkyHanni-4.22.0-mc1.21.5.jar SHA-1 e52fda3ebe9d1b2830362dcf436548bef0c1964f · Modrinth version ntIJEWZD · Project link unavailable Client only
SkyOcean-1.9.0-1.21.5.jar SHA-1 8a7a0daca364326f0783cb13b3c2897f8f91fe8a · Modrinth version jkXUljZr · Project link unavailable Client only
Skytils-1.21.5-fabric-2.0.0-alpha.4.jar SHA-1 7683758111224e776a411f2a5a86c75bb1bd068c · Modrinth version elXfb9eh · Project link unavailable Client only
sodium-extra-fabric-0.6.3+mc1.21.5.jar SHA-1 f791686c1af393dd8931540f38b5aab8e28f2b5c · Modrinth version E5w6eZNE · Project link unavailable Client only
sodium-fabric-0.6.13+mc1.21.5.jar SHA-1 6a7132ea86653541fa53ef88c764c8ac0cde81cc · Modrinth version DA250htH · Project link unavailable Client only
yet_another_config_lib_v3-3.8.0+1.21.5-fabric.jar SHA-1 70062ce6d7956536aca63df4258b1124f2bc3432 · Modrinth version fBTCjR8O · Project link unavailable Side not labelled

Pick your setup

Skyblock Ultra by Minecraft version and loader

Choose the version and loader you play, then open the matching release.

1 available setups

Made local changes? Try them in a copied instance before touching a world you care about.

Recent files

Skyblock Ultra versions and loaders

1 of 1 releases match

Looking for an older file? The official Modrinth project page is in Resources.