Personal Worlds
by Irgendwer01
Personal Worlds lets each player design a void or flat world, choosing which blocks, biomes and features it contains.
What it does
Players create their own void and flat worlds, with almost every setting open to change. A custom list of allowed blocks and biomes defines what a world can use, and a preset list of standard blocks gives a starting point for flat worlds. Settings also cover the sky color, the day and night cycle, vegetation and tree generation, weather, and whether hostile or passive mobs spawn.
The mod runs on Forge for Minecraft 1.12.2 and needs both the server and every player to have it, since the world settings are applied on both sides. It depends on MixinBooter and ModularUI, and it also requires CodeChickenLib. Files are published for 1.12.2 only, with 1.0.6 as the latest build from 2025-12-03. The code is released under the GNU Lesser General Public License v3.0 only, so the source is open and the project has a public issue tracker.
Key features
Custom void and flat worlds
Players design their own void or flat world, adjusting many parameters to suit a build or a setting.
Allowed blocks and biomes
A definable list restricts which blocks and biomes can appear in a world, making the result predictable.
Block presets
A creation list of standard block presets lets players pick a starting layout for a flat world.
Sky, time and weather
Options control the sky color, the day and night cycle and the weather of a world.
Vegetation and mob spawning
Tree and vegetation generation can be set, along with whether hostile or passive mobs spawn.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 2
Use cases
Building on a blank canvas
A player who wants a clean space for building can start from a void world and add only the blocks chosen in the allowed list.
Testing with set conditions
A world with fixed weather, mob spawning and day length lets a player check a build under the same conditions each time.
Who it’s for: Players who want to control the content and conditions of their own worlds on Minecraft 1.12.2 with Forge. Server owners who want to offer these worlds to players must also install the mod on the server.
Questions
Does Personal Worlds need to be installed on the server?
What does Personal Worlds require?
Which game versions are supported?
More from Irgendwer01
Official listing
- Modrinth page
- modrinth.com/mod/personal-worlds
- Owner
- Irgendwer01
- Published
- 2024-02-04
- Updated on Modrinth
- 2025-12-03
- Facts verified
- 2026-10-15