4Jen
by JohnSequitur
4Jen backports the world customization options from Legacy Console Edition to Better Than Adventure, letting a world be built with set sizes and flattened Nether settings.
What it does
Players choose world generation settings when creating a new world, drawing on the options found in Legacy Console Edition. The mod adds limited world size presets named Classic, Small, Medium and Large, and an option to flatten the Nether in the style of Legacy Superflat. The Nether can be given an infinite ocean with a bedrock wall, and the travel ratio between the Nether and the Overworld is adjusted for limited worlds.
The settings are global, so they apply across the world. Changes made in the settings menu only affect chunks that are generated afterward, which means already generated terrain keeps its original form. The author recommends writing the chosen settings into the world name, so they can be recovered later if the menu is forgotten. HalpLibe is required and must be installed alongside 4Jen.
4Jen runs on client and server, so the server and every player need it. It is published for BTA Babric, for game version b1.7.3 only, with snapshot builds available. The code is open source under the CC0 1.0 Universal license, and public links are provided for the source code.
Key features
Legacy world size presets
World size options named Classic, Small, Medium and Large follow the choices offered in Legacy Console Edition.
Flattened Nether
A setting flattens the Nether in the manner of Legacy Superflat, producing a level layout instead of the usual terrain.
Nether ocean and bedrock wall
The Nether can be generated with an infinite ocean and a bedrock wall at its edge, giving a bounded space.
Global settings for new chunks
World generation settings apply globally, and changes take effect only on chunks generated after they are set.
Gallery
Requirements
Dependencies declared by the latest file for each loader.
Required 1
How it compares
Better With Bigshrooms is a client and server mod for BTA Babric and b1.7.3 under the CC0 1.0 Universal license, and it is open source, but it adds huge mushrooms rather than world size options. Better With Aether-BTA is also client and server and open source, licensed under the GNU Lesser General Public License v3.0 only, and targets the same loader and version. Better Than Battle Towers is client and server, open source under CC0 1.0 Universal, and focuses on battle tower structures.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| 4Jen | BTA Babric | b1.7.3 | Client and server | 2026-09-04 |
| Better With Bigshrooms (Huge Mushroom Backport) | BTA Babric | b1.7.3 | Client and server | 2026-06-04 |
| Better With Aether-BTA | BTA Babric | b1.7.3 | Client and server | 2026-08-07 |
| Better Than Battle Towers | BTA Babric | b1.7.3 | Client and server | 2026-09-21 |
Questions
Does 4Jen need HalpLibe?
Do server owners need 4Jen installed?
Why do existing chunks not change after adjusting settings?
In the catalog
4Jen is one of 8,515 World generation mods on ModsFinder. 567 mods support Minecraft b1.7.3.
Similar mods
What the author says
Backports world customization options from Legacy Console Edition into Better than Adventure! All limited world size options from Legacy Console Edition (Classic, Small, Medium, Large).
Official listing
- Modrinth page
- modrinth.com/mod/4jen
- Owner
- JohnSequitur
- Published
- 2026-09-03
- Updated on Modrinth
- 2026-09-04
- Facts verified
- 2026-10-15