Fractal Block World
Fractal Block World, a NeoForge world generation mod for 1.21.1, adds a dimension called Ying World with its own biome, blocks and yellow flower structures.
What it does
Players who travel into the Ying World dimension find a Ying Forest biome whose terrain is built from concrete blocks, including plain, Concrete X and yellow variants. The mod is based on the game of the same name and carries its visual identity into the generated world. Small Yellow Flower structures appear within the biome, each centred on a Small Yellow Flower Core block that marks the structure.
Every player and the server need a copy of the mod. Files are published for NeoForge only, and the single release targeting game version 1.21.1 is 0.1beta, dated 2025-01-24. Its code is released under the MIT License, but the project is not open source. Because Ying World is a separate dimension, it is reached through a portal or command like any other added dimension.
Ying Flower blocks and structures are generated across the Ying Forest, so the biome has a consistent look rather than scattered decoration. The mod does not add items for crafting; its content is found in generated terrain and dimension travel.
Key features
Ying World dimension
A separate dimension that holds the Ying Forest biome and its generated terrain.
Ying Forest biome
A forest biome whose ground and surface are built from concrete and yellow concrete blocks.
Small Yellow Flower structures
Structures of small yellow flowers generated in the biome, each anchored by a Small Yellow Flower Core block.
Ying Flower blocks
Flower blocks that make up the Ying Flower structures and decorate the forest floor.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Who it’s for: The mod suits players and server owners on NeoForge 1.21.1 who want an additional dimension with a themed forest biome and flower structures, without other gameplay changes.
How it compares
Color Biomes is client and server, is published for NeoForge 1.21.8 only and is closed source under All rights reserved. The Golden Forest is also client and server and covers NeoForge 1.21.4 – 1.21.8, so it does not target 1.21.1 the way Fractal Block World does. Giant Yellow Tree runs on Fabric, Forge and NeoForge for 1.20.1 – 1.21.11 and is closed source as well, with the same client and server environment.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Fractal Block World | NeoForge | 1.21.1 | Client and server | 2025-01-24 |
| Color Biomes | NeoForge | 1.21.8 | Client and server | 2026-03-01 |
| The Golden Forest | NeoForge | 1.21.4 – 1.21.8 | Client and server | 2026-07-04 |
| Giant Yellow Tree | Fabric, Forge and NeoForge | 1.20.1 – 1.21.11 | Client and server | 2026-02-07 |
Questions
Does Fractal Block World need to be installed on the server?
Which loader and version does Fractal Block World support?
In the catalog
Fractal Block World is one of 8,515 World generation mods on ModsFinder, and one of 4,175 World generation mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
More from WiktorSquared
Similar mods
Official listing
- Modrinth page
- modrinth.com/mod/fractal-block-world
- Owner
- WiktorSquared
- Published
- 2025-01-24
- Updated on Modrinth
- 2025-01-24
- Facts verified
- 2026-10-15