GregTech: New Horizons (GTNH) is one of Minecraft's most complex and challenging modpacks, and this ranking evaluates essential elements that shape the gameplay experience. From fundamental mods like Thaumcraft, IndustrialCraft 2, and EnderIO to crucial fuel types including diesel, gasoline, and biodiesel, every component plays a vital role in progression. Storage solutions like JABBA, Iron Chests, and Storage Drawers keep your massive operations organized, while mods like Witchery and BuildCraft add unique mechanics. The list also covers important resources such as oil variants, benzene, and limonite ore, plus diverse biomes like Rainforest, Canyon, and Magical Forest that affect your world exploration. Whether you're a GTNH veteran or planning your first playthrough, these rankings highlight what truly matters in this marathon modpack.