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Beyond The Underground (5 New Cave Biomes!)

Thumbnail: Beyond The Underground (5 New Cave Biomes!)

This add-on adds more cave types for you to explore. Be careful of deadly mobs along the way, and you'll be rewarded with valuable goods for you to level-up your gear!

This add-on currently adds 5 new cave types.

๐Ÿ„ Luminous Caverns (Mushroom Caves)

Luminous Caverns (Mushroom Caves)

Luminous Caverns (Mushroom Caves) Biome

  • These caves generate exclusively under Mushroom Islands
  • This is a peaceful cave with no natural hostile mobs spawning
  • The entire cave is slightly lit up with vegetation!

Vegetation & Foliage

  • Giant Luminous Mushrooms & Giant Gloomy Mushrooms generate in this cave
  • Normal-sized mushrooms generate on the surface
  • Radiant Vines grow from the ground
  • These plants all emit a small amount of light!

Food

Luminous Mushroom Stew Recipe

  • Luminous Mushroom Stew can be crafted with 1 Bowl, 1 Luminous Mushroom, and 1 Gloomy Mushroom
    • Replenishes 6 hunger points (3 hunger bars)
    • Gives you Night Vision for 15 seconds

Mysterious Stew Recipe

  • Mysterious Stew can be crafted with 1 Bowl, 1 Luminous Mushroom, 1 Gloomy Mushroom, 1 Red Mushroom, 1 Brown Mushroom, and 1 Mysterious Fungus
    • Replenishes 3 hunger points (1.5 bars)
    • Gives you 1-2 random effects (selecting from all positive and negative effects)

Ores

Luminite Ore and New Tools With Armor

  • Luminite is a blue gemstone that can be found in Luminous Caverns
  • Luminite Ore generates at Y levels -64 to 12
    • Drops 1-2 Luminite Shards when broken

Luminite Recipe

  • Combine 6 Luminite Shards and 1 Diamond in a Crafting Table to get 1 Luminite
  • Luminite can be used to craft gear!

Netherite, Luminite and Diamond Tools Comparison

  • As Luminite gear is harder to obtain than Diamond gear but also easier to obtain than Netherite, the stats of Luminite gear are in between Diamond and Netherite gear.

Mobs

Shroom Elves

  • Shroom Elves spawns in Luminous Caverns
  • They can be bred using Luminous Mushrooms
  • They spawn in large groups of 4-8
  • They have 8 health (4 hearts) and die almost instantly from lava
  • They run away from the player but can be lured using Luminous Mushrooms
  • They drop 0-2 Luminous Mushrooms when killed

Luminous Mooshrooms

  • Luminous Mooshrooms spawns in Luminous Caverns
  • They can be bred using Wheat
  • Interact with them using:
    • A bucket to get milk
    • A bowl to get Luminous Mushroom Stew
    • Mysterious Fungus first, then a Bowl to get Mysterious Stew
    • Shears to get Luminous Mushrooms. This will turn them into normal cows
๐Ÿง™โ€โ™€๏ธ Slimy Sewers (Slime Caves)

Slimy Sewers (Slime Caves)

Slimy Sewers (Slime Caves) Biome

  • These caves generate exclusively under Swamps
  • This is a very dangerous cave with thick green fog, limiting your render distance

Vegetation & Foliage

  • A layer of Slimy Stone replaces Stone on the surface, which slows you down
  • Slime Layers cover most of the floor
  • Slimy Blossoms and Slimy Sprouts scatter across the cave
  • Sticky Spikes generate on the surface and hurts you when you step on them
  • Slime drips from the ceiling
  • Mud, Tall Grass and Slimy Pebbles can be found here

Food

Slime Soup Recipe

  • Slime Soup can be crafted with 1 Bowl and 2 Slimeballs
    • Replenishes 3 hunger points (1.5 bars)
    • Gives you Jump Boost II for 8 seconds and Resistance II for 5 seconds
    • Has a 45% chance to also give you Hunger I for 30 seconds and Nausea II for 20 seconds

Mobs

Slimy Zombies

  • Slimy Zombies spawn in the Slimy Sewers
  • They spawn in large hordes of 4 to 7
  • They have 20 health (10 hearts) like regular zombies
  • They throw Hardened Slimeballs at enemies which deal 7 damage (3.5 hearts) with no armor
  • They drop Rotten Flesh and Hardened Slimeballs when killed
  • Vanilla Minecraft Slimes spawn more frequently here, in groups of 2 to 4
  • Vanilla Minecraft Witches also spawn more frequently here, in groups of 1 to 3

Structures

Slime Dungeon

  • Slime Dungeons generate under Swamps between Y=-59 and 47.
    • There are 2 variants: Stone & Deepslate, for their respective Y levels
    • There are 3 spawners, 1 with Slimes, and 2 with Slimy Zombies

Slime Dagger

  • There is a treasure chest in the middle with valuable loot, including the Slime Dagger (exclusively found here!)
  • Slime Daggers deal +4 attack damage and inflict enemies with 6 seconds of Poison II & 3 seconds of Jump Boost I

New Slime Blocks and Items

  • Here is everything new you can get from the Slimy Sewers.
  • Slime Dungeons are built using Slimy Stone Bricks, Slimy Deepslate Bricks, and Slimy Deepslate Tiles. You can craft them using Slimy Stone and Slimy Deepslate!
  • Slime Lanterns can be crafted using 1 Glowstone and 4 Hardened Slimeballs!
๐Ÿฆ‚ Limestone Caves (Desert Caves)

Limestone Caves (Desert Caves)

Limestone Caves (Desert Caves) Biome

  • These caves generate exclusively under Deserts
  • This is a very dusty cave with thick yellow fog

Vegetation & Foliage

  • All stone in this cave is replaced with Limestone, Cobbled Limestone, Calcite, and Sandstone
  • Patches of Quicksand and Coarse Dirt occasionally generate
  • Limestone Pebbles, Cobbled Limestone Pebbles, and Sand Layers can be found on the floor
  • Sandy Roots hang from the ceiling

Mobs

Scorpions

  • Scorpions spawn in the Limestone Caves
  • They spawn in swarms of 2 to 4
  • They have 16 health (8 hearts)
  • They inflict 10 seconds of Poison every attack
  • They drop Raw Scorpion items on death (or Cooked Scorpion items if died in fire or lava)
  • Vanilla Minecraft Husks also spawn more frequently here, in hordes of 2 to 4

Sandy Skellies

  • Sandy Skellies spawn in the Limestone Caves in groups of 1 to 2
  • They have 16 health (8 hearts)
  • They have a 10% chance to drop their skull when killed

Special Weapon

Wand of the Sands Recipe

  • The Wand of the Sands can be crafted using Sandstone Sticks (found in Limestone Dungeons) and 1 Sandy Skelly Skull.
  • They can be used to trigger sandstorms, inflicting Blindness and Weakness II to opponents!

Food

Cooked Scorpion Recipe

  • Raw Scorpion items drop from Scorpions on death
    • Replenishes 1 hunger point (0.5 bars)
    • Gives you Fatal Poison II for 10 seconds, Nausea III for 8 seconds, and Hunger III for 10 seconds
  • Raw Scorpion items can be smelted in a Furnace or Smoker to make a Cooked Scorpion
    • Replenishes 5 hunger points (2.5 bars)

Potion of Fatal Poison Brewing

  • Raw Scorpion items can be used to brew Potion of Fatal Poison.

Structures

Limestone Dungeon

  • Limestone Dungeons generate under Deserts between Y=6 and 47.
    • There are 4 spawners, 2 with Scorpions, and 2 with Husks
    • There is a treasure chest in the middle with valuable loot, including diamonds, golden apples, and/or enchanted apples

Limestone Ruins

  • Limestone Ruins can be found in Limestone Caves between Y=6 and 47.
    • All ruins have a chest, which contains useful items.
    • There are 6 variants in total. See if you can find them all!

New Limestone Blocks

  • Limestone Dungeons & Limestone Ruins are built using Limestone Bricks. You can craft them using Limestone, and there are many other variants as well!
โ„๏ธ Ice Caves

Ice Caves

Ice Caves Biome

  • These caves generate exclusively under Frozen Biomes
  • Ice can be found everywhere, including dripping icicles and ice crystals

Vegetation & Foliage

  • Ice Crystals, Frosted Stone and Frosted Deepslate replaces most stone on the cave surface
  • Crystallized Ice and Blue Ice make up the cave ceiling
  • Pebbles can be found on the floor
  • Icicles drip from the ceiling

Mobs

Penguins

  • Penguins spawn in the Ice Caves and on the surface of frozen biomes
  • They spawn in groups of 3 to 5 on the surface and 2 to 4 underground
  • They have 10 health (5 hearts)
  • They cannot be tamed, but can be lured and bred using Raw Cod and Raw Salmon
  • Vanilla Minecraft Strays also spawn more frequently here, in armies of 2 to 4

Frost Spirits

  • Frost Spirits spawn in the Ice Caves
  • They are playful little ice cubes that jump and attack you
  • They have 16 health (8 hearts)
  • They deal 3 damage (1.5 hearts) per hit
  • They drop Frost Essence, which can be used for brewing and crafting a special weapon

Potions

Potion of Freezing Brewing

  • Frost Essence can be used to brew Potion of Freezing, which gives you Slowness and Mining Fatigue.

Structures

Lost Explorer Camps

  • Lost Explorer Camps generate under frozen biomes (in ice caves) between Y=-30 and 20.
    • Lost Explorers trade you materials from the surface for things found underground
    • Because of a Minecraft bug, Lost Explorers do not spawn along with the structure. To spawn the Lost Explorer, interact with the Suitcase when holding an Emerald.

Ice Dungeon

  • Ice Dungeons generate in Ice Caves between y=-40 and 40.
    • In the chest, you may find the Frozen Core and other valuables!

Special Weapon

Bane of Frost Recipe

  • The Bane of Frost can be crafted using 6 Frost Essence, 1 Frozen Core, and 2 Sticks.
  • This weapon deals +6 attack damage and inflicts 3 seconds of Slowness IV and Mining Fatigue III.

Other Blocks

Packed Ice Blocks

  • Packed Ice Bricks can be crafted using Packed Ice. There is also Chiseled Packed Ice with a snowflake pattern!

New Pebbles

  • Pebbles naturally generate here, except for Limestone variants. To craft more pebbles, simply put the respective block into a Stonecutter!
โ˜ ๏ธ Soul Caverns (Nether Caves)

Soul Caverns (Nether Caves)

Soul Caverns (Nether Caves) Biome

  • These caves generate exclusively in new, giant caverns in the Nether Wastes!
  • These caves are home to the Crooked Forest, with the new Crooked wood type
  • Souls are present almost everywhere in this cave. Watch out for ghostly, wandering Wisps!

Vegetation & Foliage

  • Crooked Fungi and Crooked Roots generate here
  • Giant Crooked Fungi are found everywhere
  • Lava pits and Soul Geysers are common in this cave. Tread carefully!

Mobs

Wisps

  • Wisps spawn in the Soul Caverns and in Soul Sand Valleys
  • They spawn in groups of 2 to 3
  • They have 12 health (6 hearts)
  • They shoot Souls at you, which deal a lot of damage!
  • They drop Soul Fragments upon death, which can be used to craft the Soul Healer

Potions

Potion of Decay Brewing

  • Soul Fragments can also be used to brew Potion of Decay, which give you the Wither effect.

Food

Crooked Fungus Stew Recipe

  • Crooked Fungus Stew can be crafted with 1 Bowl and 2 Crooked Fungi
    • Replenishes 6 hunger points (3 bars)
    • Gives you Fire Resistance for 20 seconds

Structures

Soul Castle

  • Soul Castles generate in the Soul Caverns. Continue exploring, and you'll find one eventually!
    • There is 1 Wisp spawner
    • There is a treasure chest filled with goodies, ranging from Soul Bricks to Diamonds, Enchanted Apples, Soul Fragments, or even the Soul Healer!
    • Hidden underneath the lava are Broken Lava Tanks. Repair them in a Crafting Table first!

Other Blocks

Lava Tanks

  • Lava Tanks work like sponges, but for lava instead. Add either Gold Ingots or Diamonds to a Broken Lava Tank in a Crafting Table to repair them.
  • The only source of Lava Tanks are the Soul Castles.
  • Gold Lava Tanks remove lava from a 7x4x7 area, while Diamond Lava Tanks remove lava from a 11x6x11 area.
  • Lava Tanks need to be cooled down after each use. Follow the in-game instructions for more details!

Crooked Wooden Blocks

  • The Soul Caverns include a new wood type: the Crooked wood!

New Soul Blocks

  • Soul Stone generates in the Soul Caverns and in Soul Sand Valleys. Craft them into Soul Bricks for building!

Experimental Toggles

Required Experimental Toggles for Beyond the Underground Addon

  • You can find the toggles in World Settings under the Game section.
  • These toggles must be turned on:
    • Holiday Creator Features
    • Custom biomes
    • Upcoming Creator Features
    • Beta APIs
    • Molang Features

Known Issues

  • The thick green fog from the Slimy Sewers, the yellow fog from the Limestone Caves and the blue fog from the Luminous Caverns, Ice Caves & Soul Caverns also appear on the surface.
  • Due to technical limitations, Radiant Vines, Dripping Slime, Sandy Roots and Dripping Icicles will not break when a supporting block is broken.
  • Blocks with a custom model (e.g. Radiant Vines & Dripping Icicles) do not get destroyed by water or lava and cannot be waterlogged.
  • Pick Block does not work on blocks with a custom model. Get them from the inventory instead.
  • Some errors may show up when generating a world. These errors do not affect gameplay in any way and can be safely ignored. To turn off the error log, go to Settings > Creator > turn off โ€œEnable Content Log GUIโ€.
  • World generation may take a bit longer when this add-on is activated.

This add-on may decrease performance on lower-end and weaker devices.

Please report any bugs you find! Suggestions are also welcome.

In-game Music

  • Background music is played when exploring the cave biomes! These songs were all made by Leonardo.
  • Check out the YouTube playlist for all the songs!

Credits

  • A massive thank you to everyone who contributed to the pack! Names are listed in alphabetical order.

Credits for Beyond the Underground Addon

Important

  1. You must NOT share the MediaFire link to the download directly. Always share the link to this ModBay page. Do NOT set up a new download link yourself.
  2. Credit me if you are using my pack.
  3. Contact me for permission before using this add-on in a public modpack.
  4. This add-on does not use player.json.
  5. You should always backup your world once in a while when playing. I am not responsible for any loss.
  6. This work is licensed under CC BY-ND 4.0. To view a copy of this license, visit https://creativecommons.org/licenses/by-nd/4.0/

Monetizing my content helps support me, so I can continue working on packs like this one. Thank you for the support!

Minecraft 1.20.60 or above is required. Some issues may arise when using this add-on in Preview 1.20.70.

You need to download and activate both the Resource and Behavior pack for the add-on to work.

Backup your world before updating to a newer version of the add-on!

Updated on February 15

Version 1.5.2 (February 15, 2024)

General Changes:

  • Updated the add-on to be compatible for Minecraft 1.20.60.
  • Improved the behavior of Radiant Vines, Dripping Slime, Sandy Roots and Dripping Icicles to function more like vanilla Dripstone.
  • This add-on now requires Minecraft 1.20.60 to function. Preview 1.20.70 is not supported at the moment.
  • Fixed the download links.

Slimy Sewers:

  • Slime Daggers now inflict 5 seconds of Poison II instead of 6 seconds.
  • Slime Daggers now inflict 3 seconds of Jump Boost I to the enemy.
  • The special ability of the Slime Dagger is now called Intoxication.

Limestone Caves:

  • Sandy Skellies now spawn more frequently in Limestone Caves.

Ice Caves:

  • The special ability of the Bane of Frost is now called Frostbite.
  • Frost Spirits now spawn more frequently in Ice Caves.
  • Strays now spawn less frequently and in smaller groups in Ice Caves.

Soul Caverns:

  • Improved chunk loading times when entering the Nether.
  • Removed the cooldown for Soul Healers.
  • A Use button now appears on screen when holding a Soul Healer on touch UI.
  • The Soul Stone layer on the ceiling of the Nether Wastes is now thinner.
  • Lava Tanks must now be placed above lava to be activated.
  • The affected area of Lava Tanks is now displayed in their item names.
  • Updated the opening and closing sounds of Crooked Trapdoors to match Vanilla Minecraft.
  • The countdown for Lava Tanks that are cooling down are now shown automatically.

Fixed Bugs:

  • Fixed an issue causing Radiant Vines, Dripping Slime, Sandy Roots and Dripping Icicles to not function properly when they are placed or broken in a world with cheats disabled.
  • Slingshots now have item animations when being used.
  • Movement speed is now reduced when pulling back a Slingshot.
  • Fixed an issue causing players to spawn on the Nether roof when entering the Nether.
  • Fixed an issue causing an error with the "minecraft:shooter" component appearing in the content log.
  • Fixed an issue causing an error with the "silk_touch_enchant" appearing in the content log.
  • Cooling down a Lava Tank now uses the Water Bucket and replaces it with an empty one.
Changelog for v1.5.1 / October 13 / Old Update

Version 1.5.1 (October 13, 2023)

Changes:

  • Updated the add-on to be compatible for Minecraft 1.20.30 & 1.20.40 Preview.
  • "Leonardo - Lost in Ooze" now loops in the Slimy Sewers with no pauses.
  • Gold & Diamond Locked Lava Tanks now have different textures.
  • Locked Lava Tanks now have particle & sound effects during block interaction.
  • Added checkmark and cross glyphs to block interaction responses.
  • Mobs can now pathfind & jump over Crooked Fences, Crooked Fence Gates and Soul Brick Fences as the "minecraft:unwalkable" component was removed by Mojang Studios.
  • Added Simplified Chinese & Traditional Chinese translations to new items in Version 1.5.
  • This add-on now requires Minecraft 1.20.30 or above to function.

Fixed Bugs:

  • All Luminite tools are now affected by the Efficiency enchantment.
  • Fixed an issue causing Lava Tanks to not remove lava.
  • Fixed a visual error causing Obsidian to appear in Gold & Diamond Full Lava Tanks.
  • Lava Tanks now return an empty bucket when emptied by the player.
  • Fixed missing translations in Traditional Chinese.
Changelog for v1.5 / August 29 / Old Update

Version 1.5 (August 29, 2023)

New Blocks:

  • Slimy Pebbles
  • Slimy Deepslate Pebbles
  • Crooked Door

New Items:

  • Slingshot
  • Sandstone Stick
  • Sandy Skelly Skull
  • Wand of the Sands
  • Frost Essence
  • Frozen Core
  • Bane of Frost

New Mobs:

  • Sandy Skelly
  • Frost Spirit

New Structure:

  • Ice Dungeon

Music!

  • Added custom background music to all 5 cave types! Massive thanks to Leonardo!
    • Luminous Caverns: Leonardo - Gleaming in the Dark
    • Slimy Sewers: Leonardo - Lost in Ooze
    • Limestone Caves: Leonardo - Undead Winds
    • Ice Caves: Leonardo - Below Zero
    • Crooked Caverns: Leonardo - Deeper Depths

General Changes

  • Potions no longer have enchantment glints.
  • Slightly changed the model of pebbles.
  • This add-on now requires Minecraft 1.20.10 or above to function.

Luminous Caverns

  • Changed the texture of the Block of Luminite.
  • Luminite gear can now be destroyed by explosions as the "minecraft:explodable" property was removed by Mojang Studios.
  • Luminite gear can now be destroyed by explosions as the "minecraft:explodable" property was removed by Mojang Studios.
  • Reduced the amount of durability of all Luminite gear:
    • Luminite Helmet: 490 --> 381 (-109)
    • Luminite Chestplate: 711 --> 554 (-157)
    • Luminite Leggings: 667 --> 520 (-147)
    • Luminite Boots: 578 --> 450 (-217)
    • All Luminite tools: 2571 --> 1795 (-776)

Slimy Sewers

  • Slimy Zombies now shoot Hardened Slimeballs using Slingshots!
  • Slingshots can be used to shoot Hardened Slimeballs. If you pull back the slingshot longer, the Hardened Slimeball shot deals more damage!
  • Reduced the amount of damage Hardened Slimeballs deal (7 --> 5).
  • When placing torches on Slime Layers, the layer will be replaced by the torch instead of the torch floating on top of it.
  • Trail particles now appear when walking on top of Slimy Stone and Slimy Deepslate.
  • Mud patches now generate in the Slimy Sewers.
  • Tall Grass & Large Ferns now generate in the Slimy Sewers.
  • Slimy Pebbles & Slimy Deepslate Pebbles now generate in the Slimy Sewers.
  • Slime Dungeons now generate less frequently.
  • Slimy Blossoms now give off more light (4 --> 6).
  • Slimy Stone no longer generates below y=0.
  • Changed the friction value of some Slimy blocks for consistency.
  • Witches now spawn less frequently.

Limestone Caves

  • Thrown Sand Lumps now deal more damage (1 --> 4).
  • Limestone Dungeons now generate less frequently and only up to y=40.
  • Limestone Ruins now generate more frequently and up to y=50.
  • Quicksand now generate less commonly in Limestone Caves.
  • Coarse Dirt, Dead Bushes and Tall Grass now generate in the Limestone Caves.
  • Cobbled Limestone now generate less commonly.
  • When placing torches on Sand Layers, the layer will be replaced by the torch instead of the torch floating on top of it.
  • Reduced the amount of diamonds found in Limestone Dungeon chests.
  • Increased the amount of valuables in Limestone Dungeon chests.

Ice Caves

  • Potions of Freezing are now brewed with Frost Essence instead of Ice Crystals.
  • Ice Dungeons now generate between y=-40 and y=40.
  • Lost Explorers now trade 2 Honey Bottles for 2 Diamonds.
  • Lost Explorers now trade 1 Diamond for 1 Frost Essence.
  • Removed the Lost Explorers' trade of flowers for Ice Crystals.
  • Other than the custom-made song by Leonardo, 2 other songs by C418 also play in the Ice Caves:
    • C418 - Kyoto
    • C418 - Flake

Crooked Caverns

  • Upside down mini Crooked Forests now generate at the ceiling of Nether Wastes!
  • Crooked Caverns now generate much more frequently.
  • Crooked Caverns are now more cavernous!
  • Glowing Obsidian now generate less commonly at lower levels of the cave.
  • Gold Lava Tanks (all variants) now take 0.5 seconds longer to destroy.
  • Diamond Lava Tanks (all variants) are now more blast resistant. (2 --> 3)
  • Wisps now have larger hitboxes, making them easier to kill.
  • The Wither effect from Wisps' thrown souls now lasts a shorter period of time.

Fixed Bugs:

  • Updated the add-on to be compatible for Minecraft 1.20.10 & 1.20.20+.
  • Glow Mycelium no longer generates below y=0.
  • Entities no longer gain a speed boost when walking on Quicksand, Slimy Stone and Slimy Deepslate blocks.
  • Entities now move slower on Slimy Deepslate Slabs.
  • All Slimy Deepslate blocks now take the same amount of time to destroy.
  • Fixed a misplaced pixel in the texture of Slime Lanterns.
  • The Slime Layer & Sand Layer crafting recipes now give the correct items.
  • Fixed an issue causing Limestone Caves to not generate.
  • Scorpions no longer spawn in peaceful difficulty.
  • Sandstone patches no longer generate below y=0 in Deserts.
  • Blue fog now also appears in caves in Frozen Ocean biomes.
  • Crooked Fences and Soul Brick Fences now have correct collision boxes.
  • Nether cave carvers once again generate in versions 1.20.20 and above.
  • Fixed an issue that could cause water to generate in the Nether.
Download links
[Required] Resource Pack Download (v1.5.2)
[Required] Behavior Pack Download (v1.5.2)
Follow me on Twitter for update news & announcements!
Alternatively, download the pack from my website!
Follow me on Twitter for exclusive sneak peeks & announcements!
Supported versions
1.20.60
Tags
2 758
2 comments
  1.  profile avatarMrPop profile avatar MrPop
    This has to be one or is my favorite addon
  2. SirGhaith profile avatar SirGhaith
    Let's GOOO, new update for the ๐Ÿ add-on!!!