Biomes O’ Plenty is a classic biome pack, it adds 50+ new biomes to the Overworld, with extra content for the Nether and End too. You also get a big set of matching plants, trees, flowers, and building blocks, so it helps both exploration and building.

On newer versions (1.18+), it works normally in singleplayer and on servers, but like most worldgen mods it’s best on a new world (or in newly generated chunks). On older versions, you may need the correct world type/level-type setting, otherwise the biomes won’t generate.

Terralith is a big Overworld upgrade built for 1.18+ worldgen. It adds 85+ new biomes, refreshes most vanilla ones, and brings in new terrain styles like canyons, floating islands, shattered areas, and deep ocean trenches. It also includes custom cave biomes, so underground exploring doesn’t feel like the same caves over and over.

Alex’s Caves is a Forge mod for Minecraft 1.20.1 that adds six rare cave biomes to the Overworld. They’re not meant to be everywhere, each one is more like a hidden destination with its own blocks, mobs, items, and mechanics. The biomes are Magnetic Caves, Primordial Caves, Toxic Caves, Abyssal Chasm, Forlorn Hollows, and Candy Cavity.

To get started, you’ll need to find an Underground Cabin somewhere in the Overworld. Inside, you can grab cave tablets and the Cave Compendium, which points you toward the biomes and explains how they work. Since the mod uses a custom atmosphere (fog, particles, lighting, etc.), it’s usually best experienced without shaders, some shader packs can mess with how the caves are supposed to look.

BetterNether expands the Nether into a proper ecosystem. You get new biomes, loads of new plants, extra materials, and a big set of builder-friendly blocks (plus variations on familiar vanilla ones). It also adds new mobs and structures, ranging from smaller dungeons to big, rare finds like Nether Cities, so it’s not just prettier, it’s more interesting to explore.

BetterEnd turns the End into a real dimension instead of a quick dragon stop. It adds 24+ new biomes and reworks existing ones, each with its own atmosphere, resources, and mobs. The End sky also gets a custom look, with new visuals plus custom music and ambient effects so exploring doesn’t feel empty.

The mod also replaces vanilla End generation with a custom, configurable generator, so islands vary more in shape, height, and terrain, and you’ll even find caves inside them with unique resources. On top of that, you get a big block and item lineup (new wood and stone types, food, tools, armor, weapons) and extra mechanics like infusion rituals and End progression to give you reasons to stay longer.

Gardens of the Dead is a small Nether biome mod with a spooky theme. It currently adds two new biomes, Soulblight Forest and Whistling Woods, plus matching plants and decorative blocks to build with. It’s a good pick if you want the Nether to feel darker and more atmospheric without adding a huge overhaul.

Incendium is a Nether overhaul (datapack-style, packaged as a mod) that uses only vanilla blocks, but still makes the Nether feel completely different. It boosts Nether height to 192, adds 8 new biomes and 9 structures, and reshapes the terrain with jagged mountains and deeper cave systems.

The mod also works server-side, meaning players can join with a vanilla client while the server runs it. The Nether ends up tougher, but much more rewarding, with high-value structures like the Nether Reactor, Sanctum, and Forbidden Castle. Just don’t pair it with Amplified Nether mod.

Regions Unexplored is a big biome mod that refreshes both the Overworld and Nether with 70+ new biomes, plus dedicated cave biomes so the underground feels less repetitive. The range is wide, realistic picks like Redwoods, Bayou, Chalk Cliffs, and Joshua Desert, alongside more stylized spots like Alpha Grove, which is a rare throwback biome with old-school Minecraft vibes.

The mod is also great for builders. Along with the new landscapes, you get plenty of new plants, stone types, and multiple wood sets.

Nature’s Spirit is an Overworld biome mod that adds new environments inspired by real places, but keeps the vanilla feel. Alongside the biomes, it’s also a builder’s mod, its block palette leans into softer, muted colors with dyeable Chalk sets and Kaolin (a clay-style block) for clean, pastel builds.

The mod has a bunch of small mechanics that make it stand out too, like coral-based calcite generators, lotus elevators that raise/lower you, and a few fun crafting extras. On top of that, it adds new village types that match the new biomes, like Wisteria, Coconut, Adobe, and Cypress villages.

Nullscape is an End terrain overhaul that keeps the End’s core identity (empty, harsh, and vast). It doesn’t try to make the End colorful or friendly, it just makes the terrain way more interesting to travel through.

The mod boosts End height up to 384 and uses modern worldgen to introduce a wide shape variety – from shattered islands and floating valleys to sharp, crystallized peaks. Newer versions also use a large-scale terrain system so different regions feel physically different, which helps the End stay unpredictable the deeper you go without turning it into a totally different dimension.

Instead of dumping in dozens of new biomes, Ecologics upgrades the existing ones with new mobs, blocks, and small features that make the game look nothing short of idyllic.

The mod is split into themed additions: beaches get coconut trees (with falling coconuts), seashells, sandcastles, and even coconut crabs, deserts get camels, prickly pears, and new ruins with loot pots, snowy biomes get penguins, thin ice patches, and new ice/snow building blocks.

Plains get walnut trees and squirrels, and lush caves get azalea wood variants, plus mossy details like stackable moss carpet and surface moss you can layer onto blocks.

In short, everything to make your vanilla world feel more alive is likely contained here!

The Endergetic Expansion is an End-focused mod that improves the dimension’s look and feel, with the long-term goal of making the End feel more varied and biome-driven. It adds a standout new outer islands biome called the Poise Forest, with its own visuals and mechanics, and it also upgrades some vanilla End visuals like the central exit and gateways.

The Poise Forest shows up semi-rarely in the outer islands (in the same general region where chorus biomes can generate).

Cinderscapes is a Fabric nether biome mod that adds a small set of highly polished biomes, aiming for quality over quantity. It expands the Nether with four new areas, Ashy Shoals, Blackstone Shales, Luminous Grove, and Quartz Cavern, all designed to blend with vanilla’s style instead of feeling modded-in.

Along with the biomes, the mod adds a handful of new building blocks (so you actually bring something back from exploring), and it even includes extra music to match the atmosphere. It’s a great fit if you want the Nether to feel richer without stacking a bunch of massive biome overhauls.

Biome Makeover is a vanilla-friendly mod that reworks specific biomes instead of adding a giant biome list. The idea is simple: take biomes that can feel a bit plain and give them more character, while still fitting into normal survival and modpacks.

Right now the mod focuses on four makeovers, Dark Forest, Swamp, Badlands, and Mushroom Fields, and each one comes with its own mix of new plants, structures, mobs, and small mechanics to make the biome feel like an actual place you want to explore.

Wilder Wild is basically a wild update, but more complete. It adds new biomes (like Cypress Wetlands, Jellyfish Caves, and Oasis), plus a bunch of smaller upgrades to existing ones, especially forests, swamps, and birch areas, so the world feels more alive without looking out of place.

The mod also brings in extra details that you notice while playing such as fireflies, new trees and wood sets (like cypress and baobab), more plants and decorations (pollen, cattails, shelf fungus, flowering lily pads), and a few new mobs and structures to make exploring feel more exciting.