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How To Install Custom Builds/Versions of Forge and/or Custom Mods

Installing Forge through the 1-click Install list on your control panel

If the Forge version you need is an available option on our list then you do not need to install it manually.

Currently we have the Recommended and Latest builds for Forge 1.6.4, 1.7.10, 1.8.9, 1.9.4 and 1.10.2 on our list, and the Recommended builds of Forge 1.11.2 and 1.12.
If any of these builds will work for the mods you are installing you can install them easily following these steps:

- Log into your account and go to your servers main page (Where the Start/Stop/Restart buttons are found).
- Change the drop down list of server options (Will be set to 'Default' if you have never changed this) to the Forge build you wish to install.
- Hit the Save button at the bottom of the page.
- Restart the server.

This will install the selected Forge version. Note that when you run one of the Forge options it will completely wipe the contents of the mods folder (to avoid version conflicts etc...) so make sure you have not already installed your mods when you do this!

Step By Step on Installing Custom Forge Builds

First, download the build you need from: - Make sure to select the specific version you need (as, for example, Forge 1.7.10 mods will not work on a Forge 1.8+ server):

And to download the 'Installer' file for that version (For these examples we will use the current recommended version of 1.8.9 - Use whichever build/version you require):

Once downloaded, double click the .jar file to start setup process:

You will get 3 options, select "Install server," then select the directory to install it to (such as a folder on your desktop to keep things easy to find) by clicking the "..." button at the bottom:

Click OK and let it complete the process and click OK on the pop up that comes up when it is done installing.

Once it is finished, you should find the server files in the directory you set it to install to:

(In this example I installed the files to the same directory the installer was in - the two highlighted files, the installer and the .log, can be deleted at this stage)

Upload both .jar files (Forge and Vanilla MC - not the installer file) and the libraries folder to your server's jar directory via FileZilla:

So you have this (In this case I deleted the previous contents of the jar directory first - you do not need to do this, but it is suggested to do so):

Now go to your Multicraft control panel and look for the "JAR File" text box. Enter the name of the .jar file that looks similar to this: minecraftforge-[mc version]-[build number].jar (so in this example 'forge-1.8.9-'):

Start up your server and you should be good to go (your server should automatically generate the "mods" folder if the install was successful). The control panel may not display your server as online via the status icon, so you may have to rely on the console to check for server status.
A simple solution to the server not showing as Online correctly is to select the Custom Server JAR option on the control panel and hit Save at the bottom of the page:

Then go back into your server files and rename the Forge jar file in the jar directory to 'custom_server.jar':

And restart the server!


Installing your mods once Forge is set up

Now you can download your favorite mods and simply upload the zip/jar files for them to the "mods" folder of your server to install them (via FileZilla as above). Make sure to pay attention to the version of Forge ModLoader the mods you want to install are using and make sure you have the correct version of Forge the mod needs. Note that not every mod installs via the above method, so always make sure to read the full directions for the particular mod you are installing.

If the mod works properly, your server should start up.

Tip: Install mods one at a time (including any dependancies for that mod) so that you can always determine if a single mod is the cause of your server not working.
Once the mods you wish to use are installed and working fine, it is recommended to shut it down and then follow these steps to load a new world generated by those mods specifically:
- Enter a new world name in the World box (can be anything, just not the name of a world that has already been created unless you are uploading your own world folder for it to load).
- Hit Save at the bottom of the page.
Then if you are using a world generation mod that requires a specific level-type (for this example lets say you have installed Biomes O Plenty) follow these steps too:
- Go to Files > Config Files on your control panel and open the Server Settings.
- Change the level-type option to what your mod requires (for Biomes O Plenty for example, change it to BIOMESOP all in capitals).
- Save changes to the file.
Then start the server back up to load a new world up, generated specifically by the mods you are using (so all natural ores/mods/buildings etc... are spawned correctly).

**Note: As with any mods, the client side is required to be modded as well (with the same version mods) for you to be able to join a modded server. There are various YouTube videos on how to do this depending on the mods you want to use - Here is a video that should help:

**Note that some mods are clientside-only, or singleplayer-only and cannot be used on the server!
Clientside only mods will work fine if they are installed on your launcher but not on the server, and will crash the server if installed on it (examples being HUD mods, most minimap mods or Optifine).
Singleplayer only mods simply cannot be used with a server at all. It is rare for a mod to be singleplayer only any more, but this can come up here and there.
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