Random Chunks
by BaGaJa
Random Chunks changes how chunks generate in a world, shuffling the blocks that fill them as players explore.
What it does
Chunks get randomized as they load, so terrain can show blocks from unexpected sets. Select blocks from the Randomizer Falling Blocks Default list can be disabled, which keeps those blocks out of the shuffle. A chunk can be set to stay as it is, and once it is excluded it is not randomized again.
Randomization can be tuned for performance. A Performance Mode option reduces the work the game does per chunk, and the randomization radius can be changed so that only chunks inside the chosen distance are affected. Chunks have to load before they are randomized, so a larger radius or a full shuffle takes longer and can cause lag.
Random Chunks requires Fabric API and is published for Fabric and Forge across 11 release versions, 1.20.4 – 26.1.2. Installation covers the server and each player's game. The mod is released under All rights reserved and is not open source.
Key features
Chunk randomization
Chunks are shuffled as they generate, altering the blocks players see in the terrain around them.
Per-chunk exclusion
A chunk can be turned off so it keeps its original blocks and is never randomized again.
Block selection
Selected blocks from the Randomizer Falling Blocks Default list can be disabled to keep them out of the shuffle.
Radius and performance settings
The randomization radius and a Performance Mode setting control how many chunks are affected and how much work each one costs.
Gallery
Compatibility
Latest build for each game version and loader.
26.x3 of 3 versions with builds
1.21.x6 of 6 versions with builds
1.20.x2 of 2 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Use cases
Surprise survival worlds
Players who want unfamiliar terrain can run survival with randomized chunks around their base.
Server events
Server owners can run a world where the surroundings are reshuffled, using the radius to limit the area.
Who it’s for: Players who want altered terrain in survival or multiplayer worlds, and server owners who want to run a shuffled world with adjustable performance.
How it compares
Random Block Chunk is a Fabric-only client and server mod for 1.21.10, released under the MIT License and not open source. One Chunk Blocks is server-side only, Fabric-only, covers 1.16.5 – 1.21.11 and is also not open source. Skychunk is the open source option, running on Fabric and Forge for 1.16.2 – 1.21.1 with client and server support.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Random Chunks | Fabric and Forge | 1.20.4 – 26.1.2 | Client and server | 2026-04-19 |
| Random Block Chunk | Fabric | 1.21.10 | Client and server | 2025-11-26 |
| One Chunk Blocks | Fabric | 1.16.5 – 1.21.11 | Server-side only | 2026-04-19 |
| Skychunk | Fabric and Forge | 1.16.2 – 1.21.1 | Client and server | 2026-08-15 |
Questions
Does Random Chunks need Fabric API?
Does the server need Random Chunks?
Which game versions are covered?
In the catalog
Random Chunks is one of 7,555 Cursed mods on ModsFinder, and one of 4,235 Cursed mods for Fabric. 15,189 mods support Minecraft 26.1.2.
More from BaGaJa
Similar mods
Official listing
- Modrinth page
- modrinth.com/mod/chunk-random
- Owner
- BaGaJa
- Published
- 2025-01-03
- Updated on Modrinth
- 2026-04-19
- Facts verified
- 2026-10-15