Beyond The Underground (5 New Cave Biomes!)

Luminous Caverns (Mushroom Caves)

• 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 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 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 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

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

• 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 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 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

Slimy Sewers (Slime Caves)

• 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 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 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 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

• 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

• 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!

Limestone Caves (Desert Caves)

• 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 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 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

• 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

• 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)

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

Structures

• 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 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!

• Limestone Dungeons & Limestone Ruins are built using Limestone Bricks. You can craft them using Limestone, and there are many other variants as well!

Ice Caves

• 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 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 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

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

Structures

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

Special Weapon

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

• Pebbles naturally generate here, except for Limestone variants. To craft more pebbles, simply put the respective block into a Stonecutter!

Soul Caverns (Nether Caves)

• 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 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

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

Food

• 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 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 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!

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

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

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.

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.