Chunk = Random Block
by AlphaSlither
Chunk = Random Block changes the block placed on the ground as a player crosses into each new chunk, so the terrain keeps shifting while exploring.
What it does
Entering a new chunk triggers a new random block under the player's feet. Each chosen block comes from a pool of complete cubes, slabs, fences, walls, stairs and glass panes that the mod judges fit for play, and dangerous or brittle types are screened out before the draw. Falling gravel and sand, torches, grass and floating air can also appear, which adds variety to the terrain as the world is explored.
The change is applied on the server side only, so the server and every player need the mod to match what is shown. Players join without it, since only the server has to run the mod. Pauses and starts are synchronized with the game challenge, so the effect follows the challenge's own timing.
Installation uses Fabric Loader with the Fabric API as an optional companion. Files exist for Fabric and game version 1.21.11, with 1.0 for 1.21.11 as the latest build, published on 2026-04-09. The mod is released under the Creative Commons Attribution Non Commercial 4.0 license and is not open source.
Key features
Random block per chunk
Each new chunk brings a new random block, so the surface changes as a player moves through the world.
Smart filtering
Dangerous and fragile blocks are excluded from the pool automatically, keeping the random terrain stable.
Solid selection
A wide assortment of solid shapes makes up the pool: whole blocks, half-height slabs, fences, walls, stairs and glass.
Synchronized pauses and starts
The effect pauses and resumes in step with the game challenge, so it follows the challenge's timing.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Challenge runs
Server owners running a challenge can use the random terrain to make every chunk unpredictable.
Exploration play
Players exploring new ground see a different surface with each chunk, adding variety to travel.
Who it’s for: Players who enjoy unpredictable terrain and server owners who run challenge-style games on Fabric, with the server as the only side that needs the mod.
Questions
Does Chunk = Random Block need to be installed on the client?
Which loader does Chunk = Random Block use?
Are dangerous blocks ever placed by the mod?
More from AlphaSlither
Official listing
- Modrinth page
- modrinth.com/mod/chunk-random-block
- Owner
- AlphaSlither
- Published
- 2026-04-09
- Updated on Modrinth
- 2026-04-09
- Facts verified
- 2026-10-15