Minecraft Modpack Installation Guide

Minecraft Modpack Installation

Modpacks bundle dozens (or hundreds) of mods into a curated experience. This guide covers installing modpacks on your HostedGG server, from popular pre-built packs to custom creations.

Supported Modpack Platforms

Installing a Modpack

Method 1: One-Click Install (Recommended)

1. Open your server dashboard
2. Go to the Mods tab
3. Search for the modpack name
4. Click Install
5. The server will install the modpack, download all dependencies, and configure automatically
6. Restart your server

Method 2: Manual Upload

For modpacks not available through the installer:

1. Download the server files from CurseForge, FTB, or the pack's website
2. Important: Download the SERVER version, not the client version
3. Stop your server
4. Open the File Manager
5. Delete existing mods/ and config/ folders
6. Upload the server files (extract the zip first)
7. Ensure the Forge/Fabric version matches the modpack requirements
8. Start the server

Popular Modpacks

Heavy Modpacks (6-8 GB RAM recommended)

Medium Modpacks (4-6 GB RAM recommended)

Lightweight Modpacks (2-4 GB RAM recommended)

RAM Requirements

Modpacks vary significantly in their resource needs:

Client-Side Setup

Every player needs the modpack installed on their client:

Using CurseForge Launcher

1. Download CurseForge App
2. Select Minecraft
3. Search for your modpack
4. Click Install
5. Launch the modpack profile
6. Add your server IP in Multiplayer

Using ATLauncher

1. Download ATLauncher
2. Go to Packs tab
3. Search and install your modpack
4. Launch and add your server

Using Prism Launcher

1. Download Prism Launcher
2. Click Add Instance → CurseForge or Modrinth
3. Search and install
4. Configure RAM allocation (match server RAM if possible)

Version Management

Updating a Modpack

1. Back up your world first (Backups tab → Create Backup)
2. Check the modpack's changelog for breaking changes
3. Update via the Mods tab or manually upload new server files
4. Tell all players to update their client-side modpack
5. Restart the server

Downgrading a Modpack

If an update breaks your server:

1. Restore from backup
2. Manually install the previous version's server files
3. Tell players to downgrade their client

Adding Extra Mods to a Modpack

You can add mods to an existing modpack, but be careful:

1. Check compatibility with the modpack's Forge/Fabric version
2. Ensure the mod doesn't conflict with existing mods
3. Test on a backup world first
4. Both server AND clients need the extra mod

Common Additions

Custom Modpack Creation

Building Your Own Server Modpack

1. Choose your Forge or Fabric version
2. Select compatible mods from CurseForge or Modrinth
3. Test mod compatibility locally
4. Upload server-side mod JARs to your server's mods/ folder
5. Share your mod list with players

Tips for Custom Packs

• Start small — Add 10-20 mods, test, then add more
• Check dependencies — Many mods require library mods (Architectury, GeckoLib)
• Watch for conflicts — Two mods modifying the same mechanic can crash
• Version match everything — All mods must target the same MC version and loader

Troubleshooting Modpacks

Server Won't Start

1. Check console for error messages
2. Verify Forge/Fabric version matches the modpack requirements
3. Check RAM — the server might need more memory
4. Remove recent mods — if you added extra mods, remove them

"Missing Mods" Error When Joining

Players must have every mod the server has. Solutions:

1. Ensure client modpack version matches the server
2. Any extra mods added to the server must also be on the client
3. Re-download the modpack if corrupt

Server Crashes During World Generation

Heavy modpacks struggle with new chunk generation:

1. Increase RAM to the next plan tier
2. Pre-generate chunks with Chunky (if compatible with the modpack)
3. Reduce view distance to 6-8
4. Set a world border to limit generation

Performance Issues

See our Performance Optimization Guide for general tips. Modpack-specific:

• Remove client-side-only mods from the server
• Disable unused mods if the pack has optional features
• Update all mods — newer versions often have fixes

Next Steps

• Understand mod loaders and installation
• Choose the right server type for modpacks
• Optimize modded server performance

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