🏜️ 1. New Biomes & Biome Overrides Added

Biome Identifier Biome Name Key Features & Characteristics

custom:mesa_valley Mesa Valleys Custom badlands region containing flat-bottom terraced canyon valleys, multi-layer terracotta walls, dead bushes, cacti, and coarse dirt/clay ground.

custom:desert_ravine_biome Desert Ravine & Sinkhole Zone Arid desert biome override specifically configured to host 0.02% desert ravines and 15-chunk subterranean sinkholes.

custom:overhaul_forest Overhaul Forest Custom forest biome variant designated for forest-only subterranean cave generation networks.

🛠️ 2. Comprehensive List of Additions & Updates

🏜️ Deserts & Mesas:

Valleys in Mesas ONLY: Sweeping canyon valleys (custom:mesa_valley_carver) carved exclusively in mesa and badlands biomes.

Updated Desert Ravines ONLY in Deserts: Deep sandstone/basalt gorges (custom:desert_ravine_carver) with red sandstone, exposed gold/iron ore, lava streams, and sandstone bridges.

Desert Ravine Spawn Rate: Updated to 0.02% chance per chunk (scatter_chance: 2/10000).

15-Chunk Desert Sinkholes: Massive circular collapse crater (custom:desert_sinkhole_feature) spanning 15 chunks in scale with stepped sandstone cliffs, hanging roots, and an underground oasis water pool at the bottom.

Desert Sinkhole Spawn Rate: 0.5% chance per biome (scatter_chance: 1/200).

🌲 Caves & Caverns:

Subterranean Caverns in Taigas, Plains, and Forests: Large open underground chambers (custom:taiga_plains_forest_cavern) with dripstone stalactites/stalagmites, subterranean lakes, mossy boulders, and glow lichen.

Caves ONLY in Forest Types: Standard cave networks (custom:forest_cave_carver and minecraft:overworld_underground_cave_carver_feature override) are restricted strictly to forest biome types (forest, birch, dark_forest, flower_forest). Non-forest biomes no longer generate standard caves.

🌊 Ocean Trenches:

Deepslate Ocean Trenches: Deep underwater rifts (custom:ocean_trench_carver) in deep_ocean biomes extending from the sea floor down to Y: -54 deepslate levels, with magma block hydrothermal vents (generating upward bubble streams), obsidian, and glowing sea lanterns.

🏔️ Mountains & Volcanoes:

Mega Mountains (3–5x Bigger): Towering alpine mountain peaks (custom:mega_mountain_feature) reaching Y: 200+ in mountain biomes (extreme_hills, jagged_peaks, stony_peaks, snowy_slopes). Built with stone, diorite, calcite, powder snow, and blue ice summits.

Mountain Cave Density (2–3x More Caves): Set to iterations: 6 (3x standard cave density) across mountain biomes.

Volcanoes: Basalt lava cones (custom:volcano_feature) built of basalt, blackstone, magma core, obsidian rim, active lava caldera, and cascading lava streams.

Most commonly found in Deserts and Mesas (1/35 chance).

Has a secondary chance (1/75) in mountain biomes where it replaces/overrides mountain peaks.

🌊 Rivers & Surface Waters:

Updated Rivers — Waterfalls: Cascading waterfall step cliffs (custom:river_waterfall_feature) along river channels with water streams, mossy stones, river boulders, fallen oak log bridges, and splash mist (1/18 chance).

Updated Rivers — River Mouth Beaches: Sandy delta shorelines (custom:river_mouth_beach_feature) where rivers meet ocean biomes, featuring sand bars, gravel banks, smooth sandstone ledges, sea grass, sugarcane, and driftwood (1/25 chance).

Natural Ponds: Freshwater pools (custom:natural_pond_feature) added across overworld land biomes (plains, forest, taiga, swamp, jungle, meadow) decorated with lily pads, sea grass, sea pickles, and sugarcane/cattails (1/15 chance).

💻 3. Complete List of Test Commands

⚡ Function Commands (Easiest to run in-game):

Run these commands in chat to instantly display info or spawn structures at your position:

/function info — Displays a full summary of all active features in chat.

/function spawn_volcano — Spawns the Volcano structure.

/function spawn_sinkhole — Spawns the 15-Chunk Desert Sinkhole pit structure.

/function spawn_trench — Spawns the Deepslate Ocean Trench structure.

/function spawn_waterfall — Spawns a River Waterfall structure.

/function spawn_pond — Spawns a Natural Pond structure.

/function spawn_beach — Spawns a River Mouth Beach structure.

/function spawn_mountain — Spawns a Mega Mountain structure.

🏗️ Direct Structure Commands (Manual structure placement):

/structure load custom:volcano ~-16 ~-2 ~-16

/structure load custom:desert_sinkhole ~-17 ~-15 ~-17

/structure load custom:ocean_trench ~-9 ~-15 ~-9

/structure load custom:river_waterfall ~-8 ~-2 ~-8

/structure load custom:natural_pond ~-8 ~-1 ~-8

/structure load custom:river_mouth_beach ~-10 ~-1 ~-10

/structure load custom:mega_mountain ~-17 ~-2 ~-17

📍 Biome Teleport Commands (To test natural worldgen in specific biomes):

Desert Ravines & Sinkholes: /locate biome desert

Mesa Valleys: /locate biome badlands or /locate biome mesa

Forest-Only Caves & Caverns: /locate biome forest

Subterranean Caverns: /locate biome taiga or /locate biome plains

Deepslate Ocean Trenches: /locate biome deep_ocean

Mega Mountains & 3x Cave Density: /locate biome jagged_peaks or /locate biome mountains

River Waterfalls & Delta Beaches: /locate biome river

ReWorld