• UndergroundOcean (by Reoseah)
• UndergroundBiomesConstructs (by Zeno410)
• WTF's Expedition: CaveBiomes, Ores, Trees, and Tweaks (by WhiskytangoFox)
• Biome Height Tweaker (by EzTerry)
• UBC Ore Registrar (by marwat208)
• AutoRegLib (by Vazkii)
• Quark (by Vazkii)