Create Modpacks (Create: Perfect World / Ultimate Selection)
Source Platform
Modrinth & CurseForge
Mod Loader
Forge / Fabric (1.20.1)
Recommended RAM
5 GB – 8 GB
Java Requirement
Java 17
How to install Create Modpacks (Create: Perfect World / Ultimate Selection) in Prism Launcher
Rotational-power engineering packs centered around kinetic contraptions, trains, and automated factories.
Click **Add Instance** on the Prism Launcher toolbar, choose **Modrinth** on the left sidebar, search for **Create Modpacks (Create: Perfect World / Ultimate Selection)**, and click **OK**. Prism downloads the manifest and all mod JARs into an isolated instance folder.
Modpacks install as their own instance, so they stay clean and easy to update.
Recommended Java and memory settings on Windows
**Java runtime:** Java 17. Configure this under Java Settings so the pack does not fail the startup compatibility check.
**Memory allocation:** Set Maximum Memory (`-Xmx`) to **5 GB – 8 GB** under Edit Instance → Settings → Memory.
**Need the app?** Grab the Windows installer or portable build from /download.
Frequently asked questions
What if CurseForge blocks a few mods while installing Create Modpacks (Create: Perfect World / Ultimate Selection)?
Prism Launcher opens the download pages for any blocked mods and watches your Windows `Downloads` folder automatically — click Download in your browser and Prism moves the files into place.
How much RAM does Create Modpacks (Create: Perfect World / Ultimate Selection) need?
Allocate 5 GB – 8 GB under Edit Instance → Settings → Memory, and ensure you are running 64-bit Java 17.
Practical Windows guide for "prism launcher curseforge blocked mods download": instance setup, Java configuration, and mod management in Prism Launcher.