MineClone 5
kay27

A fork of MineClone 2 with no release milestones, rapid delivery, merges by one approval and no MC target version limitations

Mineclone2 New Ores and Deepslate
NO11

Adds 30 new deepslate blocks!

Loria (alpha)
siegment

Survival in hardcore acid-alien sci-fi themed world

Multiple Biome Generator
chaosomnium

230 Pseudorandomly Generated Biomes, Trees, Fruits, Ores, Tools, and Liquids

Wilhelmines Natural Biomes
Liil

Adds 7 new biomes

Lapis Lazuli
LNJ

Adds lapis lazuli ore, items and blocks.