Install a modpack Forge on Minecraft server

Install a Forge modpack on hosted Minecraft server

One modpack Forge turns your Java Minecraft server into a modeled experience (technical, RPG, adventure). At Anthony IT Solutions, your Minecraft server comes with access to the game panel: you choose Forge, allocate RAM and deploy your mods from the file manager or SFTP.

This guide details the installation of a complete Forge modpack, CurseForge, FTB or manual, with good RAM practices, Java version and crash troubleshooting on startup.

What you need

• A Minecraft server with egg Forge, offers Minecraft
• sufficient RAM (6 GB minimum for small modpacks, 8-12 GB for medium modpacks)
• Access to gamepanel and file manager
• The selected modpack (server file or mods list + configs)

Choose the correct Forge version

Each modpack is linked to a specified version Minecraft (1.12.2, 1.18.2, 1.20.1...). Check the CurseForge or FTB page:

1. Minecraft version of the modpack (e.g. 1.20.1)
2. Recommended Forge version (install exact build if indicated)
3. Java: Java 17 for 1.18+, Java 8 for 1.12.2 and anterior

When ordering or from the panel, select the egg Forge Minecraft and the corresponding version. See also Version, Forge, Fabric & modpacks.

Method 1: modpack CurseForge (server files)

1. Download Server Files

   On CurseForge, tab Files → Server pack or Additional Files → server archive.

2. Save the world today

   Create a backup from the panel, sauvegardes Minecraft.

3. Stop server

   Complete stop before any file changes.

4. Upload and Extract

   Uncompress the archive in the root directory of the server (mods, config, libraries, forge jar).

5. Accept EULAs

   Edit eula.txt : eula=true.

6. Starting variables

   Adjust the RAM in the panel variables, see JVM arguments.

7. Start and monitor the console

   The first launch can take several minutes (generation of configs).

Method 2: Manual installation of mods

If you assemble your own pack:

1. Install Forge via panel or jar install
2. Place each .jar in /mods
3. Copy folders /config provided by the pack if available
4. Remove client-only mods (JEI on server OK, OptiFine no)

RAM and modpack performance

• Small pack (< 50 mods): 4-6 GB
• Average Pack (50-150 mods): 8-10 GB
• Gross pack (150+ mods): 12 GB and more, upgrade if necessary

Apply the Aikar flags if you use Paper for a subserver; for pure Forge, prefer a stable allocation without swaps. Details: optimize TPS performance.

Common troubleshooting

• Crash on startup, mod incompatible or forge version incorrect ; read crash-reports/latest.txt.
• Missing mods on the client side, players must install the same modpack via CurseForge/Prism.
• OutOfMemoryError, increase RAM or remove the heavier mods.
• Reboot cowl, EULA not accepted or jar Forge corrupted.

Frequently Asked Questions

Can I move from Vanilla to Forge without relocating?
Yes via change of egg Forge in the panel, then upload modpack. First save the vanilla world if you want to keep it.

Manufacture or Forge for this modpack?
The majority of the large public modpacks are Forge. Fabric is suitable for light packs, see Version & modpacks.

How many simultaneous players?
Depends on RAM, mod number and entities. Monitor the GST and upgrade the supply if necessary.

Related guides

• Version, Forge, Fabric & modpacks
• Optimize performance (TPS)
• Sauvages & restoration
• Variables FMV & RAM

Discover Minecraft server hosting Anthony IT Solutions and all procedures on the wiki game server.