: Under the version list, select the Mod Loader (Forge, Fabric, or NeoForge) and choose the specific Minecraft version that matches your downloaded mods.

Before we dive into the "how," let’s address the "should you."

Mods usually require (lightweight) or Forge (heavier, more mods). In SKLauncher:

in SKLauncher with that profile selected to start your modded game. Option 2: Installing Modpacks

SKLauncher is an excellent choice for installing and managing mods, provided you are comfortable with a slight learning curve regarding the "Edit Instance" menu.