Random Block Chunk
by cjcameron92
Random Block Chunk is a Fabric mod for 1.21.10 in which every chunk of the world is made up of a single block type.
What it does
Each generated chunk is filled with one block type, so exploring means entering a new chunk and seeing what it holds. The author describes it as a OneBlockChunk-style mod. End portal frames and spawners are left untouched, so the game can still be completed. Players who explore carefully get a sense of what each chunk may contain before they walk in. Only the client and server need to run it, and it installs by placing the file in the mods folder with Fabric. Random Block Chunk is released under the MIT License and is not open source.
Key features
One block type per chunk
Every chunk is generated from a single block type, changing the look of the terrain as the player moves.
Untouched end structures
End portal frames and spawners are kept as they are, so the goal of the game remains reachable.
Careful exploration
Each new chunk may hold something unexpected, which rewards players who scout before stepping in.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Random chunks is a Fabric mod for 1.21 – 1.21.11 that runs on the server alone and is released under the MIT License. Slime Chunk No More is also Fabric-only and server-side, for 1.21.5 – 1.21.11, and is open source under CC0 1.0 Universal.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Random Block Chunk | Fabric | 1.21.10 | Client and server | 2025-11-26 |
| Random chunks | Fabric | 1.21 – 1.21.11 | Server-side only | 2026-02-08 |
| Slime Chunk No More | Fabric | 1.21.5 – 1.21.11 | Server-side only | 2025-06-18 |
Questions
Does Random Block Chunk need Fabric API?
Does the server need Random Block Chunk?
In the catalog
Random Block Chunk is one of 7,555 Cursed mods on ModsFinder, and one of 4,235 Cursed mods for Fabric. 15,569 mods support Minecraft 1.21.10.
More from cjcameron92
Similar mods
What the author says
OneBlockChunk is a mod, designed for Baablu. Each chunk is made up of 1 singular type of block. Explore the world but be careful, you may enter a chunk you did not expect to encounter. End Portal Frames and Spawners remain untouched so you can still beat the game:)
Official listing
- Modrinth page
- modrinth.com/mod/randomblockchunk
- Owner
- cjcameron92
- Published
- 2025-11-26
- Updated on Modrinth
- 2025-11-26
- Facts verified
- 2026-10-15