Minecraft wiki entry for Mods, associated text: Mod packs are collections of mods that have been put together and configured so that they all work together. Mod packs are often centered around a general theme like tech, quests, or magic. Mod packs often have either custom launchers or installers that make installing and running the mod pack easy. Some popular mod packs include Feed The Beast, Tekkit, RLCraft, and Hexxit.