Geophilic

Geophilic is a worldgen datapack for Minecraft 1.21.1, version 3.7, that rewrites 29 vanilla Overworld biomes. It adds vegetation, rocks, flowers, grass patches and small formations that generate inside those biomes, and it changes which mobs spawn in them. It adds no blocks, items, mobs, recipes, structures or mechanics of its own.

In Fear Nightfall, Geophilic is one of the biome-overhaul sources that shape the surface. Its edits to vanilla biome files are merged per biome with Terralith, so that both mods' features are present in the same biome. Changes apply to terrain that is generated after the datapack is loaded.

Overview

Geophilic is a biome overhaul. Its changes are limited to the Overworld surface, and they affect three things a player can see: the trees, logs, rocks, flowers and grass that generate on the ground; the mobs that spawn in each biome; and the music and colour effects of several biomes. Its features use the vanilla block set, so the new landscape looks like vanilla terrain with different vegetation and layout.

Geophilic sits in the pack next to other biome mods, including Biomes O' Plenty and Regions Unexplored, which add their own biomes. Mods that rewrite the same vanilla biome files conflict with Geophilic, and the later-loading one wins.

Content

Geophilic adds no items, blocks, mobs, recipes, enchantments, effects, advancements or loot tables. Its content consists of biome definitions and the features placed inside them. Each replaced vanilla biome keeps its name, and its feature list is rebuilt around Geophilic's own trees and decorations.

Replaced biomes

The following vanilla biomes are fully redefined by Geophilic:

• Forests: Forest, Birch Forest, Dark Forest, Flower Forest, Old Growth Birch Forest, Windswept Forest
• Taigas and cold biomes: Taiga, Snowy Taiga, Old Growth Pine Taiga, Old Growth Spruce Taiga, Snowy Plains, Grove
• Plains and meadows: Plains, Sunflower Plains, Meadow, Cherry Grove
• Jungles: Jungle, Sparse Jungle, Bamboo Jungle
• Savannas: Savanna, Savanna Plateau, Windswept Savanna
• Other biomes: Desert, Swamp, River, Stony Shore, Windswept Hills, Windswept Gravelly Hills, Wooded Badlands

Other horror biomes in the pack, such as Sleepy Hollows, Ominous Woods, Spider Nest, Blackwood Taiga and Ashen Woodland, are not among the replaced biomes listed above.

Features

Geophilic's placed and configured features cover trees, fallen logs, stone and ore rocks, flowers, grass patches, mushrooms, sugar cane, pumpkins, moss and small biome-specific formations. The most distinctive are:

• Cherry grove: pink petals, stone patches, stone pillars, small ponds, fallen trees, azalea bushes, small and large stone rocks, and moss.
• Stony shore: large and small stone pillars, puddles, moss and moss blocks.
• Desert: lava lakes with sandstone or red sandstone barriers.
• Swamp: mud, mud patches and mini oaks.
• Badlands: trees and cacti.
• Taiga: podzol patches, podzol grass, and berry bushes.
• Jungle: bamboo, melons, bushes and rocks, with sparse variants for the sparse jungle.
• Savanna: dirt mounds and dirt patches.

See Ores and Mining for the ore veins that the replaced biomes keep from vanilla.

Mechanics

Geophilic's features are worldgen behaviour. Nothing is unlocked or crafted, and no player action triggers them. The rules below set how each feature is placed.

• Tree selection. Each biome picks trees from a weighted list. In plains, oak is a bush at 30%, a young oak at 10%, a fancy oak at 30%, and a classic oak by default. In forests, classic birch is 20%, fancy oak is 40%, young oak is 5%, and young birch is 1%. In swamps, swamp-oak classic is 20% and swamp-oak young is 30%. Tree forms include classic, fancy, young, tall, mega spruce, bush, fallen and stump.
• Rocks. Plains rocks use a noise-based count with a rarity filter of 1 in 12. Half of the placements are ore rocks, such as coal and copper, and half are plain stone rocks.
• Flowers. Flowers are placed where noise crosses a threshold. Plains uses a rarity filter of 1 in 12. Flower forest, meadow, plains and windswept biomes each have their own flower set.
• Grass. Tall grass uses the vanilla patch with a rarity filter of 1 in 32. Grass patches are placed 10 per chunk per biome variant.
• Stony shore pillars. Pillars are placed by noise only where the surface water is 0 deep.
• Desert lava lakes. Lava lakes with sandstone barriers are placed with a rarity filter of 1 in 200.
• Cherry grove ponds. Between 0 and 2 ponds per placement, with a rarity filter of 1 in 32, biased toward the bottom of the range.
• Badlands cacti. Cacti are placed by noise with a rarity filter of 1 in 5.

Mob spawns

Geophilic rewrites the spawn table of every biome it replaces. Most entries use fixed group sizes, where the minimum and maximum are equal, which applies to 338 of the 434 entries. Some biomes also list the same mob twice, which increases its weight: chicken appears twice in the creature group of bamboo jungle, jungle and sparse jungle, and slime appears twice in the monster group of swamp. In most replaced biomes, the monster group gives spider, zombie, skeleton, creeper and slime weights of 95 to 100, so these mobs compete for the same spawn cap. For the general rules, see Mobs.

Changes to vanilla

• The 29 replaced biome files are full replacements. Any vanilla feature that is not listed in a biome file is removed from that biome.
• Vanilla tree, flower and grass-patch features are removed from the replaced biomes and replaced with Geophilic equivalents. The vanilla features that remain are ores, lake lava and springs, amethyst geodes, monster rooms, desert fossils, the desert well, disks, glow lichen, vines, icebergs, snowy trees, seagrass, and dead bush patches in badlands and desert.
• Spawn tables change in every replaced biome. Rabbits are added to several cold and grassland biomes, foxes and wolves to taiga and grove biomes, llamas to windswept and savanna biomes, horses and donkeys to plains and savanna biomes, and husks to desert. Drowned are added to river, frogs to swamp, and panda, parrot and ocelot to the jungle group. Strays and polar bears are added to snowy plains.
• Music is enabled on jungles, bamboo jungle, sparse jungle, swamp, desert, cherry grove, flower forest, dark forest, birch forest, old growth birch forest, meadow and wooded badlands. Music is removed or absent on plains, sunflower plains, river, stony shore, savanna, taiga, snowy biomes and windswept biomes.
• Grass, foliage and fog colours are overridden on cherry grove, savanna, savanna plateau, windswept savanna, wooded badlands, the taiga variants and desert.
• The bone meal tag minecraft:can_spawn_from_bone_meal gains Geophilic's flowers and grass patches. The entries are appended, so the vanilla entries stay.

In Fear Nightfall

• Terralith. Geophilic and Terralith both rewrite vanilla biome files. The pack merges them per biome, placing Terralith's features next to their neighbours, because a naive merge caused a feature-order crash in Biolith.
• Horror biomes. The pack's biome distribution gives the Dark Forest and several other horror biomes 6 times the weight of other biomes in shared sets. Geophilic's version of the Dark Forest is one of the biomes it replaces. Horror biomes make up about 11.9% of land in the pack, up from 4.5% before the change. The horror content is described on Horror and Spooky Content, and the pack's horror structures concentrate in temperate, humid forests, taigas and swamps. See Structures.
• Finding biomes. Nature's Compass is included in the pack and can locate biomes, which helps players find the Geophilic biomes.
• Configuration. Geophilic adds a "Configure Geophilic" tab to the Datapack Configurator. Its defaults are: grass density 100% in flatland and forest biomes (range 50 to 300%); boulder amount 100% in plains (range 0 to 200%); coarse dirt patch amount 100% in plains and savanna (range 0 to 200%); meadow flower amount 100% (range 0 to 300%); stone pillars in stony shore enabled; and oak, birch and spruce base height modifiers at 0 (range -2 to 4).