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How To Add Mods To A Modpack (Client Side)

Last modified on Jul 31, 2023 in General

mc head By Nathan Young


Minecraft allows players to completely overhaul the gameplay through using Forge or Fabric modifications. These mods can introduce brand new creatures or building blocks to the game, with many other possibilities too. Most players use modpacks, large collections of modifications to create a unique experience. However, sometimes there are features missing that you or others may want in the pack. This leads them to add mods onto the modpack, making it even larger. The process for doing this varies depending on your client, which can be slightly confusing for new modders. With this in mind, we’ve created this Apex Hosting tutorial to show you how to add mods to a modpack through popular launchers.

Finding & Downloading Mods

Before trying to add modifications on top of modpacks, you’ll want to ensure you downloaded the right ones. In other words, ensure you’ve obtained mods for the correct game version, type, and all its dependencies. We highly recommend reviewing our guide to safely and properly download your desired modifications. Make sure to also save these files somewhere easily accessible on your computer, as it’ll make adding them to your modpack easier.

Adding Mods to a Modpack

Minecraft Mods

Whether you’re wanting to customize small or large modpacks, adding extra mods to them is something most players try to do. This changes some features from the pack, which a few may feel is needed for better suited gameplay experiences. Others may simply experiment with mod combinations to see what works best for them. Regardless of your reasoning, doing this is different for every launcher, leading to some possible confusion. Luckily, all of these clients have user-friendly interfaces that make it easy to do. Choose your launcher from the sections below to begin adding more mods to your desired modpack.

CurseForge App

  1. Open the CurseForge App, then head towards My Modpacks.
    CurseForge Minecraft Modpacks
  2. Locate and select your desired pack from the list.
  3. On the next screen, click the three vertical dots on the right.
    Demon Slayers Minecraft
  4. In the option list, press Open Folder to reveal the modpack files.
    CurseForge Open Folder
  5. Proceed to find and enter the mods folder.
    CurseForge Local Mods
  6. Drag and drop any desired mod files into this area.


Technic Launcher

  1. Start up the Technic launcher, and navigate to the Modpacks section.
    Technic Modpacks
  2. From the list of packs, locate and select your desired one to add more mods.
  3. Once there, press Modpack Options to the top right.
    Technic Modpack Options
  4. In the prompt, click the Open button to reveal the pack files.
    Technic Modpack Folder
  5. Find the mods folder and move your wanted modifications into the area.



  1. Boot up ATLauncher and continue to the Instances area.
    ATLauncher Instances
  2. From your downloaded modpacks, locate the desired one for this process.
  3. Once found, press the Open Folder button near the bottom right of it.
    ATLauncher Open Folder
  4. Continue to enter the mods directory and place your mod files into the folder.



  1. Open the VoidLauncher, then select your wanted modpack to the left.
  2. Continue to press Edit Pack to the far right of it.
    VoidLauncher Edit Pack
  3. Afterward, choose the Edit Mods option to open the files.
    VoidLauncher Edit Mods
  4. Drag and drop your desired mods into the newly opened window.



  1. Run the FTB App and head towards the Library section.
    FTB App Library
  2. Locate your downloaded modpack, then select it.
  3. Once there, press the three vertical dots next to the Play button.
    FTB App Modpack Options
  4. Hover over Open, then click Mods Folder to reveal its files.
    FTB App Mods Folder
  5. Continue to drag and drop your desired mods to this newly opened window.


Common Issues

Minecraft is Crashing

After adding mods to a pack and the game or launcher crashes, you may have missed a required dependency. These are when a particular modification relies on another for compatibility. Sometimes, there can be multiple mods that you need to install in addition to the main one you want. Typically these dependencies are found in the Relations tab on the mod’s CurseForge page, but can also be located in the description. However, the game can occasionally crash due to mods being incompatible. This rarely happens, but is something you cannot fix due to the modification’s design preventing a successful launch.

Connection Refused

Make sure to add mods to the server when you’ve done it on your launcher, as this is required for a stable connection. Otherwise, you’ll be refused due to a mismatched mod list error. Essentially, the server and client must have the same mods unless they’re only specified for one or the other. Once all modifications are aligned on both ends, join the server to see if that works.

Useful Links

How to Find Minecraft Mods
How to Add Mods to a Minecraft Server
Modded Server Optimization Guide
Manually Installing a Modpack to a Server

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