Setting Up a Minecraft Server with Forge and SpongeForge: Mods and Plugins

8 min readUpdated May 23, 2026

Mods always make the game more interesting, especially when they are running on a server.

Before continuing, do not forget to install JDK 25: Ubuntu / Debian.

#Installing the cores

We create a directory for our server.

Using wget, download the archive with a clean Vanilla + Forge 1.12.2 build.

bash

wget https://mirror.spacecore.info/minecraft/vanilla-1.12.2+forge-1.12.2-14.23.5.2854.zip

Next, download the latest SpongeForge 1.12.2 core.

bash

wget https://mirror.spacecore.info/minecraft/spongeforge-1.12.2-2838-7.3.0.jar

Unpack the archive with the following command.

bash

unzip vanilla-1.12.2+forge-1.12.2-14.23.5.2854.zip

The core and library files have been unpacked. Here is what we got.

Now we need to launch the file forge-1.12.2-14.23.5.2854.jar with the following command.

bash

java -Xms512M -Xmx2G -jar forge-1.12.2-14.23.5.2854.jar

You can read more about startup parameters in a separate article.

Now we need to confirm the agreement in the eula.txt file.

When the command is run again, the server starts successfully.

Shut down the server. Now, for the Sponge core to work, we need to send it to the mods folder.

Let us start it again. Our server is now running with the SpongeForge core.

As an example we will use Divine RPG 1.12.2.

Remember to install the mod on the client side as well.

Upload the mod to the mods folder.

Restart the server. Do not forget to delete the world directory if the mod changes its structure.

Let us try to connect.

Success. We can also see that the mod works.

We will install LuckPerms. You can browse most plugins on the official site. Download the plugin and send it to the mods folder.

Restart the server. After startup we can see a new directory in the config folder, which belongs to the LuckPerms plugin.

Check that the plugin works on the server. The command for LuckPerms is /lp.

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