
Note that these instructions are for the normal Java 8 version of GTNH.
A History of Modded Minecraft Memory Usage. Optimal arguments will vary depending on hardware, launcher and build version. GTNH runs best with configured Java arguments for targeted garbage collection and memory usage. Please do not use a Curseforge launcher for GTNH. its new license requirements on mods make things even worse. The Curseforge launcher is not recommended because: Make sure you are using an up to date, 64-bit Java 8.Ĭurseforge Launcher Go to the Launcher settings at the top-right corner, and the Java tab of that dialog. Click the Install button on the lower right to install the pack. By default, the latest stable release will be installed, but some servers may need a different version. Optionally, click the Modpack settings link in the upper-right to select a specific version and the installation path. Make sure the pack named "GT New Horizons" is selected in the results list. In the launcher, go to the Modpacks tab and enter "GT New Horizons" in the search box. Under settings - Java, make sure you are using a version of 64-bit Java 8. Download a MMC version of the pack from and drag it into the MultiMC window to create the instance. If you are on Windows 10 or 11, make sure you are not installing it in a OneDrive folder! If you are experiencing issues with fullscreen mode, set a resolution in your launcher and check other settings in the config/lwjgl3ify.cfg config file. You only want the Java args from that page, nothing else. If you are using MultiMC you also need to add the additional Java arguments from here. In the case of Java 17 make sure you are updated to at least 17.0.6, older variants can cause start-up errors. Under settings - Java, make sure you are using a new version of Java, best 64-bit Java 17 or 64-bit Java 19. Drag it into the MultiMC/Prism window to create the instance. Download a MMC/Prism Java9-19 version of the pack from (they are currently,, labelled as java17-19 but that could change).
MultiMC or Prism Launcher with Java 9-19 Īt the moment, newer Java versions can only be used with MultiMC or Prism Launcher.
For server installation and updates, please see Server Setup.įor all launchers, 5-7 GB of memory (RAM) is recommended for GTNH in singleplayer.
For backups, please see Backups and Recovery (already included for singleplayer),. For compatible mods, please see Additional Mods,. This page shows how to install, update, or migrate a GTNH client.