How do I install InfinityCraft Ultra?

Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. Download the .jar. Put it in the .minecraft/mods folder and launch that loader profile. Opens on CurseForge — not every file is mirrored on our own servers.

What Minecraft version does InfinityCraft Ultra work with?

The listing gives Minecraft 1.21.1, 1.20.1. This is the version stated by the author or source site, not something we verified ourselves.

Home›Java›Modpacks›InfinityCraft Ultra

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InfinityCraft Ultra

by fervent_kowalevski51 · on CurseForge

Which build do you need?

This mod ships a separate file for every mod loader and every version of the game. Pick both, then download — the wrong build installs fine and then does nothing in the game.

Mod loader

Mod loader NeoForge1 build
Mod loader Forge1 build

Minecraft version

Minecraft 1.21.1Newest

Minecraft 1.20.1Newest

⬇ Download for 1.21.1 · NeoForge ⬇ Download for 1.20.1 · Forge

I don't know my version or loader

Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.

No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.

Open in MC Java Mods Get it on Google Play →

InfinityCraft Ultra - ICU

A cool modpack packed with many mods and features so you can explore,
fight, craft, automate, and have fun, worked hard, its peak. :3

Minecraft 1.21.1 · NeoForge · 390 mods · heavily optimized

WHAT'S INSIDE

Tech & Automation
Create (+13 addons) · Mekanism · Applied Energistics 2 (+10 addons)
Immersive Engineering · Industrial Foregoing · Draconic Evolution
Extreme Reactors · Powah · Flux Networks · Mystical Agriculture
Modular Force Field System · Mob Grinding Utils · Generator Galore
+ And More!

Magic
Ars Nouveau (+ Ars Creo, Polymorphia, Énergistique, Ender Source Jars)
ProjectE · Project Expansion · Allthemodium
+ And More!

Explore
The Aether · Twilight Forest · The Undergarden · Biomes O' Plenty
Integrated Dungeons and Structures · YUNG's Better Dungeons
Immersive Aircraft · Waystones · Xaero's Maps
+ 35 structure and worldgen mods

Fight
L_Ender's Cataclysm (+ Mowzie's Cataclysm, Integrated Cataclysm)
Mowzie's Mobs · Bosses of Mass Destruction · Apotheosis
+ And More!

Build & QoL
Quark · Supplementaries · Building Gadgets 2 · Macaw's (all of them)
Sophisticated Backpacks · Storage Drawers · Iron Chests
Farmer's Delight (+ compat packs) · EMI + JEI · Jade · Comforts
+ And More!

PERFORMANCE

This pack ships 70+ optimization mods, not just Sodium.
Sodium · Lithium · C2ME (all 20 modules) · ModernFix · FerriteCore
EntityCulling · Chloride · ImmediatelyFast · ScalableLux · Redirected
All The Leaks · Fast Noise · Clumps · + And More.

Every ModernFix option is tuned. Configs are hand-adjusted, not defaults.

RAM

Minimum: 8 GB
Recommended: 10-11 GB
Do NOT go over 12 GB — it causes GC lag, not more performance.

This pack is in BETA and updated regularly.

Please report any issue you may have! If you can, include your
logs/latest.log file — it's the most useful thing you can send
and it's how most fixes happen.

Want to play with friends?
[Create a server, get 25% off your first month]
https://url-shortener.curseforge.com/sqeX8

We hope you enjoy our modpack, Thanks :)
- The InfinityCraft Ultra Team

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft versions listed: 1.21.1, 1.20.1
How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.

Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.

Verified by MCModsHub

Downloads as InfinityCraft Ultra-v2.0.zip
Download size: 6.8 MB
Download link checked 29 Aug 2026 — working

These come from our own check of the pack file, not from the source page.

Explore more

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