Random OneBlock
by Fab231
Random OneBlock turns a world into a single block that yields random items each time it is broken, and it also offers a Random Lucky Block.
What it does
Players create a new world with the OneBlock preset, which uses a Superflat generator and the Void world type. The game rule that generates the OneBlock is set to true, so the single block is placed when the world loads. Breaking the block drops items from a random pool, and the block then regenerates, while the Random Lucky Block does not.
The mod runs on Fabric, Forge and NeoForge with the same behavior on each loader. Because the drop pool is open to modded items, it works with other mods that add items to that pool, and the author suggests pairing it with more mods to make the challenge larger. Builds cover 1.20.1 and 1.21.8 – 1.21.11, with 1.1.0 as the latest file for each loader. Every player and the server need a copy of the mod. The code is released under the Apache License 2.0, and the mod is not open source.
Key features
Random item drops
Breaking the OneBlock yields items picked at random from a pool, so each block break can give something different.
Regenerating block
The OneBlock comes back after it is broken, while the Random Lucky Block is a single-use variant.
Preset world setup
A world is created with the OneBlock preset, using a Superflat generator, the Void world type and the OneBlock game rule.
Modded item support
The drop pool accepts items from other mods, so the challenge can grow with the modpack around it.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Solo challenge runs
A player creates a OneBlock world and progresses from a single block, relying on the random drops to build up tools and materials.
Modded survival packs
Pack builders add other item mods so the drop pool carries modded items.
Who it’s for: Players who want a short minigame built on one block, and server owners who run a OneBlock challenge on a modded setup.
How it compares
OneBlock CraftBound: Classic runs on Forge and NeoForge for 1.19.2 – 1.21.1 and is not open source under All rights reserved. NeoBlock - The new OneBlock runs on Forge and NeoForge for 1.20.1 – 1.21.4 and is also not open source under All rights reserved. Simply OneBlock covers Fabric, Forge and NeoForge for 1.21.5 – 26.3 and needs only the server, under All rights reserved.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Random OneBlock | Fabric, Forge and NeoForge | 1.20.1 – 1.21.11 | Client and server | 2026-02-20 |
| OneBlock CraftBound: Classic | Forge and NeoForge | 1.19.2 – 1.21.1 | Client and server | 2026-09-13 |
| NeoBlock - The new OneBlock | Forge and NeoForge | 1.20.1 – 1.21.4 | Client and server | 2026-01-05 |
| Simply OneBlock (Wilderness Bound Included) | Fabric, Forge and NeoForge | 1.21.5 – 26.3 | Server required, client optional | 2026-10-01 |
Questions
Does Random OneBlock need to be installed on the client?
Which loader should be used with Random OneBlock?
Can modded items appear in the drop pool?
In the catalog
Random OneBlock is one of 2,135 Minigame mods on ModsFinder, and one of 1,454 Minigame mods for Fabric. 19,862 mods support Minecraft 1.21.11.
More from Fab231
Similar mods
What the author says
This mod adds 2 blocks: - Random Lucky Block - Random One Block The difference: The one block regenerates, the lucky block doesn't
Official listing
- Modrinth page
- modrinth.com/mod/random-oneblock
- Owner
- Fab231
- Published
- 2026-02-13
- Updated on Modrinth
- 2026-02-20
- Facts verified
- 2026-10-15