How to Install a Modpack on Your Minecraft Server
Install CurseForge, ATLauncher, and custom modpacks on your Minecraft Java server, including how to set the right Java version.
Modpacks bundle dozens or hundreds of mods together for a curated experience — Better Minecraft, RLCraft, All the Mods, FTB packs, ATM packs, etc. Most modpacks include a "server pack" you can drop into your server folder.
Install a CurseForge Modpack
Find the modpack on CurseForge
Browse to CurseForge Modpacks and find the modpack you want.
Download the server pack
On the modpack page, click the Files tab. Look for "Server Files" or a download labeled "Server Pack". This is different from the regular client pack.
Some modpacks don't have a separate server pack — in that case, follow the Manual Install tab.
Stop your server
In the XGamingServer Panel, go to Console and stop your server.
Back up the existing world
Go to Backups and create a backup before wiping the existing server.
Delete existing server files
In Files, select all current files and delete them. (Or do a fresh Reinstall Server from the Dashboard.)
Upload the server pack
Upload the server pack .zip to the server root, then Unarchive it. The contents should include mods/, config/, a startup script, and the loader's .jar file.
Set the Java version
Most modern modpacks require Java 17 or Java 21. In Startup, select the matching Java version. See Java Version.
Start the server
Start from Console. The first start can take several minutes as mods initialize and generate config files.
Identify the mod loader
Check whether the modpack uses Forge, NeoForge, or Fabric (usually in the modpack description).
Switch to the correct server type
In Startup, select the matching loader. Reinstall the server with that loader.
Download the modpack files
Download all the modpack's .jar files manually from CurseForge or Modrinth (or extract them from a client pack zip).
Upload mods
In Files, navigate to mods/ and upload all the mod .jar files.
Upload configs
If the modpack has custom configs, upload them to config/.
Players Need the Same Pack
Every player connecting to a modded server needs the same modpack installed locally. The easiest way:
| Launcher | Notes |
|---|---|
| CurseForge App | Best for CurseForge packs — auto-installs the entire pack |
| ATLauncher | Cross-platform, supports CurseForge + ATLauncher packs |
| Prism Launcher | Open-source launcher with great modpack support |
| MultiMC | Original modpack-friendly launcher (less actively maintained) |
Tell your players: "Install [Modpack Name] from [launcher]. Connect to <your IP>."
Update a Modpack
Back up everything
Go to Backups and save your current state. Modpack updates can break worlds.
Download the new server pack
Get the new version from CurseForge.
Delete old mods
In Files, delete the contents of mods/ (but keep your world/ folder).
Upload new mods
Upload the new pack's mods to mods/. Replace any updated configs as well.
Start the server
If something breaks, restore from your backup.
Warning: Modpack updates that remove mods can corrupt your world if those mods added blocks/items players have placed/collected. Always back up before updating, and test in a separate world if possible.
Common Issues
| Problem | Fix |
|---|---|
| Server runs out of memory | Modpacks are RAM-hungry. Increase RAM allocation in Startup. See How Much RAM |
| Wrong Java version | Modern modpacks need Java 17/21. Set in Startup |
| Crash on startup | Check Console for the failing mod. Remove or update it |
| Players can't connect | They don't have the same modpack installed. Send them the launcher link |
| No server pack available | Use the manual install method, or try downloading a client pack and removing client-only mods |
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