One Chunk Blocks
Turns generated chunks into single-block chunk mosaics while keeping Minecraft fully beatable.
- Loaders
- Fabric
- Downloads on Modrinth
- 2.7K
- Followers on Modrinth
- 2
- versions
- 18
- Updated
- April 19, 2026Apr 19
- Published
- in 2026
At a glance
Install on the server only; players don't need it
One Chunk Blocks turns world generation into a chunk-by-chunk block mosaic.
After terrain and features are generated, each chunk is assigned one deterministic block from a large palette. Most solid blocks inside that chunk are then replaced with that chosen block, so one chunk may become stone, another may become quartz, another may become obsidian, copper, terracotta, wood, planks, or many other full blocks.
Gameplay
This mod creates a chaotic and unusual survival world where every new chunk can look completely different from the previous one. It is meant for challenge runs, strange exploration, and worlds that feel unpredictable without fully breaking progression.
Notes
This mod affects newly generated chunks. Existing terrain that was already generated before installing the mod will not be changed.
FAQ
How to install One Chunk Blocks?
Install Fabric for your Minecraft version, download One Chunk Blocks for the same version and loader, put the file into the mods folder and launch the game with the loader profile.
Which Minecraft versions does One Chunk Blocks support?
One Chunk Blocks has builds for Minecraft 1.20.6, 1.21.1, 1.21.4, 1.21.11 ….
Is One Chunk Blocks needed on the server?
Server only — players don't need to install it