ChunkRandomizer
by Slyyyxd
ChunkRandomizer is a Forge minigame that gives each in-game day a new layer of random blocks deep beneath the surface, starting at Y=100.
What it does
The mod adds a set of chunk layer options and a hardcore survival setup built around a single 16x16 chunk. Each day a new layer appears, and every block in that layer is filled with one block type, chosen from a range that runs from common dirt to rare diamond ore and bedrock. The player's task is to survive using only the resources the layers provide.
Progress is organized into story milestones that can be customized. The author text describes resources arriving around day 30, Nether portal access, and the End portal by day 75. Players must select the matching world type during world creation for the layers and void map types to work correctly, and setup instructions are included.
The mod is published for Forge only, across the game versions 1.20.1 – 1.20.6, and runs on the client and server, so the server and every player need it. The code is released under All rights reserved and is not open source.
Key features
Daily chunk layers
A new layer generates deep below the surface each in-game day, starting at Y=100.
Single-block layers
Every layer is filled with one block type, drawn from common dirt up to rare diamond ore and bedrock.
Hardcore single chunk
Survival is limited to one 16x16 chunk, so the player depends on the resources that luck provides.
Customizable milestones
Story milestones tied to particular days can be adjusted to change when resources and portals become available.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Alpha Void is a Forge mod for 1.20.1 that runs on client and server and is released under the GNU General Public License v3.0 or later. ChunkCore is also a Forge mod for 1.20.1 with client and server support, but it is released under All rights reserved. Daily Expansion covers both Fabric and Forge for 1.21 – 1.21.11 and is server-side only, so players join without installing it, which differs from ChunkRandomizer's client and server setup.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| ChunkRandomizer | Forge | 1.20.1 – 1.20.6 | Client and server | 2026-03-28 |
| Alpha Void | Forge | 1.20.1 | Client and server | 2026-04-02 |
| ChunkCore | Forge | 1.20.1 | Client and server | 2026-06-09 |
| Daily Expansion | Fabric and Forge | 1.21 – 1.21.11 | Server-side only | 2026-07-07 |
Questions
Does ChunkRandomizer need to be installed on both sides?
Which world type should be selected when creating a world?
Which game versions does ChunkRandomizer support?
In the catalog
ChunkRandomizer is one of 2,135 Minigame mods on ModsFinder, and one of 886 Minigame mods for Forge. 11,154 mods support Minecraft 1.20.6.
Similar mods
What the author says
This is a hardcore survival mod set in a single chunk (16x16). Every in-game day, a new layer spawns deep beneath you (starting from Y=100), consisting of a single random block type. Your mission is to survive using only the resources that luck throws your way! One Day, One Layer: A new level appears every 24,000…
Official listing
- Modrinth page
- modrinth.com/mod/chunkrandomizer
- Owner
- Slyyyxd
- Published
- 2026-03-11
- Updated on Modrinth
- 2026-03-28
- Facts verified
- 2026-10-15