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Prism Launcher

Similar convenience to Modrinth App

Recommended Java settings

Access these Settings from the settings menu at the top of the App in the [JAVA] tab.

• I personally use Temurin JRE. Installing java is a fuck, you can figure this out yourself or use the default one.
• 6144 MiB memory at minimum. I personally use 8192 MiB.
• Launch Arguments:

-XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+UseG1GC -XX:ParallelGCThreads=12 -XX:-UseGCOverheadLimit -Dfml.ignorePatchDiscrepancies=true -Dfml.ignoreInvalidMinecraftCertificates=true -XX:MaxGCPauseMillis=50 -XX:SurvivorRatio=8 -XX:TargetSurvivorRatio=90 -XX:MaxTenuringThreshold=15 -XX:SoftRefLRUPolicyMSPerMB=10000 -XX:ReservedCodeCacheSize=2048M -XX:+UseStringDeduplication

Installation

1. Get the Prism Launcher from here.

• Users without a Minecraft license, follow the instructions at this link..

2. On the first launch, the App will guide you through the login process with your Microsoft account.
3. Click on Add Instance to the top left of the App.

• In the left column of the newly spawned dialogue, click on Modrinth.
• Search for "Horizon Gotek".
• Select the latest version.
• Confirm with ´OK` and the modpack will be installed automatically.

4. Launch the modpack from the Main window.

Updating

1. Create Backups of your existing Instance. These are the important folders:

/minecraft
.
├── config
├── Distant_Horizons_server_data
├── _IAS_ACCOUNTS_DO_NOT_SEND_TO_ANYONE
├── replay_recordings
├── resourcepacks
├── saves
├── schematics
├── screenshots
├── shaderpacks
├── texturepacks
├── xaero

2. Open the modpack settings.

• Select the modpack in Prism.
• Click on "Edit".
• Click on the section on the left that says "CurseForge" (or "Modrinth").

3. Update the modpack.

• Click on "Update pack".
• The button is located near the right of screen next to the “Update to version” dropdown.

4. Apply backups. I recommend using the config that came with the updates, as I cannot control/support mod configurations that differ from the modpack.