Prism Launcher Modpacks & Mod Downloader
Download and update modpacks from Modrinth, CurseForge, FTB, Technic, and ATLauncher directly inside Prism Launcher on Windows.
GT: New Horizons (GTNH) on Prism Launcher
Entitygt: new horizons (gtnh) prism launcherinstall gt new horizons gtnh prism launchergt new horizons gtnh ram java settings
Deepest long-term GregTech expert pack in Minecraft, fully compatible with Prism Launcher's custom Java per-instance settings. Runs on Forge (1.7.10) or Modern Java 17/21 LWJGL3 build with 6 GB – 8 GB RAM and Java 8 or GTNH Java 17/21 package.
- Modpack
- GT: New Horizons (GTNH)
- Source Platform
- CurseForge / Technic / Direct ZIP
- Mod Loader
- Forge (1.7.10) or Modern Java 17/21 LWJGL3 build
- Recommended RAM
- 6 GB – 8 GB
- Java Requirement
- Java 8 or GTNH Java 17/21 package
How to install GT: New Horizons (GTNH) in Prism Launcher
Deepest long-term GregTech expert pack in Minecraft, fully compatible with Prism Launcher's custom Java per-instance settings.
Click **Add Instance** on the Prism Launcher toolbar, choose **CurseForge** on the left sidebar, search for **GT: New Horizons (GTNH)**, and click **OK**. Prism downloads the manifest and all mod JARs into an isolated instance folder.
Recommended Java and memory settings on Windows
- **Java runtime:** Java 8 or GTNH Java 17/21 package. Configure this under Java Settings so the pack does not fail the startup compatibility check.
- **Memory allocation:** Set Maximum Memory (`-Xmx`) to **6 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 GT: New Horizons (GTNH)?
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 GT: New Horizons (GTNH) need?
Allocate 6 GB – 8 GB under Edit Instance → Settings → Memory, and ensure you are running 64-bit Java 8 or GTNH Java 17/21 package.
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