I am looking for feedback on a large plugin i am making that will add highly configurable custom biomes, trees, world generators and new world types, mainly seasons and new biome feedback, but any suggestions are welcome. The features so far: Custom biome placement algorithm:, based on conditions: altitude, temperature, rainfall, distance from oceans, and some other maps to add randomness or rare biomes. This is an improvement on the better biome placement minecraft added in 1.8, but it also allows total customization of the biomes in a world. Biomes chosen per-world: Each world has a list of biomes and the conditions under which they are generated, so an all-desert world, an all-forest world, or any other combinations are possible. Ocean is no longer a biome: Biomes are split up into land biomes and ocean biomes, by default there will be normal, warm and frozen ocean, island biomes, and beaches/cliffs along coastlines. Adding underwater biomes like coral or kelp forests is possible. Real rivers and lakes: I am making an algorithm that will make real, gravity/terrain-following rivers that path across the lowest points in the landscape, ending in lakes or the ocean. River size would scale along with length, and would be generated independently of chunk generation (the river and river edge biomes are stored in a biome map up to two regions outside the current generation area). The same code could be adapted for lava rivers and volcanos. Custom Trees: A multithreaded tree generator for creating larger and more complex trees, it will be configurable on a per-biome basis, supports seed numbers for trees, and highly customized trees via config files. Meanwhile EpicWorldGenerator just pastes a couple dozen tree schematics Seasons (Experimental): Each biome would have a default vanilla biome that is what the player sees (determining plant color, sky, water, rain/snowfall). Optionally, each biome can also have four more IDs for other biomes. In worlds with seasons enabled, the visible biome would be changed over time, and the custom decorators for small plants, snow, ect would have season-specific states: deserts would have spring plant growth, forests would change color, ect. Optifine Biomes: Some biomes will require optifine/CTM features for biome-specific textures, this will greatly aid seasonal change and making special biomes like bamboo forests, marshland, different colored deserts, ect. CTM biomes can be turned off per-world. Per-Biome terrain generator: Each biome generates columns of blocks with a unique generator, settings are "smoothed" between nearby biomes to prevent random cliffs or sharp, ugly borders. This could allow things like a smooth transition from normal biomes to skyland biomes, or just mathematically different generators. Configurable undersampling: Minecraft naturally generates terrain at 4x4x8 undersampling,meaning it only generates every 128th block and averages the ones in between. For those pre-generating worlds and looking for more detailed terrain, i have working support for 1x1 (no undersampling), 2x2, 2x4, and 4x4 sampling. New dimensions (WIP): Skylands with normal biomes, Fantasy Skyland, Elemental plane biomes to replace the boring, useless nether. New Biomes: These are replacements for the vanilla biomes, but most will be relatively similar to them. (Feel free to suggest any others you want to see) Ocean biomes: Ocean Warm Ocean - shallow with sponges, lighter color Frozen Ocean - ice-covered Deep Ocean Coastal: Coral Reefs Rock Reefs Several island types based on climate Land Biomes: Coastal: Beaches - normal, red, white sand, rocky Cliffs matching the beaches, some with layered colored sandstone, maybe some of the 1.10 fossils Salt Marshes and river deltas Mangrove Forest Plains: found on flat land at all altitudes Grasslands - lush grass plains with some trees, replacing 1.10 vanilla plains Praerie - seasonal tall grass plains Savanna - seasonal dry grasslands with many small trees Normal and red sand deserts with a new sand dune generator Rocky deserts (southwest US, atacama desert) High Grasslands - darker colors, snow in winter Tundra - partial summer thaw with plants Marshland - open water, reeds and grasses, small pools Cyprus Swamp (southern US) - huge trees with trailing branches and moss rising out of the water Other biomes will be added to fill space as needed Forests: Found in higher-rainfall areas than plains, and some rougher terrain Oak Forests and Old Forest will replace forest and dark forest, massive trees and seasonal changes Birch forest will change color with the seasons and will be found in colder areas. Maple forests (CTM/optifine) Redwood/sequoia forests will no longer be pathetic (1.8 mega taiga) Bamboo forests (CTM/optifine) Alpine forests of mixed pines and birch, snow in winters Seasonal rainforests (west africa, australia) Rainforest replaces vanilla jungle with more types of huge trees and plants Cloudforest: high elevation rainforest with even taller trees, less dense brush Boreal Forest, replacing the cold taiga biome Hills: Grassy hills with sparse small trees (ireland, northern england) Dry desert hills, closer to the normal minecraft ones Mesa canyons and badlands, with a new generator for more coolified(?) terrain Border biomes along the edges of mountains Mountains: Desert Mountains (mexico, central africa, north slope of the himalayas) - rock/gravel with few plants Icy Mountains: bare rock with snow and ice, canyons and caves Rainforest Mountains (borneo) - small trees and vines, large rock formations Tepui (table mountains, south america) - huge rock plateaus covered in water pools and stone, plants More standard mountains for alpine areas, temperate climates, ect Rivers and lakes: Rivers will flow downhill from small lakes or springs, to the ocean or a large lake, if the ocean is unreachable. Lakeshore and river shore variants for marshes, forests, desert, alpine, snowy biomes. Fantasy Biomes: I intend to add lots of other more unusual biomes, such as: A modified version of the current dark forests, mushroom islands, and ice spike plains. Other unusual biomes based on various literature and stories, and new ideas of my own. Some will be part of the additional dimension types. Leave a suggestion if you want to see a certain type of biome.