OneLayer
OneLayer: A configurable superflat-style world for Minecraft players who still want to explore. Ranked #26 of 31 in Minecraft World Generation Mods by our editors (6.3/10); pricing: Free plan; best for players who want biomes and structures in flat worlds.
At a glance
- Editor score6.3 / 10
- PricingFree plan
- Best forPlayers who want biomes and structures in flat worlds
- Free planYes
- Paid fromNone
- World coverageOverworld
- Facts checked11 Oct 2026
Where it wins
- Keeps regular-world biomes and structures in a flat world
- Offers configurable generation options, including in-game adjustments
- Supports singleplayer world creation and server configuration
Where it doesn't
- Focused on overworld generation rather than additional dimensions
- Requires Forge or NeoForge
- Server setup involves configuring server.properties
Our verdict on OneLayer
OneLayer is a Minecraft Java Edition world-generation mod for players who want a superflat-style starting point without giving up exploration. It generates a flat world with regular-world biomes and structures, making it suited to players who prefer level terrain but still want to travel through varied environments. It supports Forge and NeoForge and covers the overworld; its stated use is a specialized world type, not a broader overhaul of Minecraft generation.
Generation options can be adjusted through a configuration file, which is also accessible in-game. That gives players control over certain world-generation settings and behaviors rather than locking them into a single flat preset. In singleplayer, OneLayer can be selected as a world-generation type. For server use, configuration goes through server.properties, so server operators should be prepared to handle that setup. The mod is self-hosted and free, with community support.
OneLayer fits players who want flat terrain as a foundation for building or traversal while retaining the biomes and structures associated with a regular world. Forge and NeoForge support make loader choice part of the compatibility decision, and the listed Minecraft versions range from 1.20–1.20.1 through 26.3. Choose another approach if the goal is adding biomes, generating other dimensions, or changing terrain beyond this focused flat-world format. Its scope is intentionally narrower: configurable overworld generation for singleplayer or server worlds.
Your product? Our editors can test OneLayer in depth and publish a review, labelled as paid · from $99/mo →
OneLayer pricing
OneLayer fact sheet
| Free plan | Yes |
|---|---|
| Paid from | None |
| Minecraft versions | 26.3, 26.2, 26.1.x, 1.21.11, 1.21–1.21.1, 1.20–1.20.1 |
| Mod loaders | Forge, NeoForge |
| World coverage | Overworld |
| Adds biomes | No |
| Terrain customization | Yes |
| Dimension generation | No |
| Deployment | Self-hosted |
| Platforms | Windows, macOS, Linux |
| Support | Community |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Free plan |
| Website | modrinth.com |
| Facts checked | 11 Oct 2026 |
Alternatives to OneLayer
- TerralithA free Overworld overhaul with more than 95 biomes, custom caves and structures.8.9
- TectonicA free terrain-focused project for players who want larger landforms and varied seas.8.8
- LithosphereA free Overworld generator for players who want continents, rivers, varied terrain and reworked caves.8.7
See all OneLayer alternatives →
Used OneLayer? Be the first to review it
The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used OneLayer for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.
Write a reviewTwo minutes · verified accounts only · read by an editor before it appears
Featured on iTechGuides
OneLayer is listed in our Minecraft World Generation Mods directory. Add the badge to your site — it links back to this page.
<a href="https://www.itechguides.com/products/onelayer/"><img src="https://www.itechguides.com/best/badge/onelayer.svg" alt="Featured on iTechGuides" width="230" height="46"></a>
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. How we rank.
Last updated · How we research and update