
Modern Beta Forge
Generate Beta, Alpha, Infdev, and Indev terrain for Minecraft 1.12.2
- Загрузки
- 11K
- Подписчики
- 21
- Обновлён
- 2 июля 2026 г.
- Лицензия
- MIT
Опубликован 11 декабря 2024 г.

A port of Modern Beta Fabric for Forge 1.12.2!
Enjoy all the toggle-able features of Minecraft 1.12.2 with the faithful re-implementation of the Beta, Alpha, Infdev, and Indev terrain generators. Originally done for a friend's server but now expanded on to match the original Fabric version in feature parity plus additional improvements/fixes. Please don't expect updates beyond bugfixes and minor improvements if I feel like it.
Features
- Terrain generators:
- Beta 1.7.3
- Alpha 1.1.2_01
- Infdev 20100611
- Infdev 20100420
- Infdev 20100415
- Infdev 20100227
- Indev 20100223
- Classic 0.0.23a
- Beta Skylands
- Pocket Edition v0.6.0
- Release (Vanilla) 1.12.2
- The End
- Biome generators:
- Beta 1.7.3
- Pocket Edition v0.6.0 (with Beta biomes)
- Single/Fixed
- Release (Vanilla) 1.12.2 with biome mod support
- Biomes O' Plenty (when Biomes O' Plenty mod is installed)
- Mix and match terrain and biome generators.
- Classic Nether terrain generation.
- Options to substitute Beta biomes with other vanilla or mod biomes for the Beta biome generator.
- In-game world generation customization, based on the vanilla Customized world type.
- Shareable and built-in world generation presets, like with the vanilla Customized world type.
- Toggleable modern structures and decoration features.
- Accurate Beta sky and Beta biome colors when playing in SP. Optional in MP.
- Adjustable cloud height for Modern Beta worlds, y108 by default.
- Modified player spawns that place players on beaches like in classic versions.
- In-game terrain/biome generation previewer before world creation.
- Commands for inspecting and editing generator settings in-game.
Server Usage
The following should be done in the server.properties file:
- Set the 'levelType' field to 'modernbeta', without the quotes.
- Set generation options in the 'generator-settings' field. You can create the generator options string using the in-game GUI.
Mod Support
Additional support is provided for these mods:
- Biomes O' Plenty
- Buildcraft Energy
- Dynamic Trees
- Future MC
- Millénaire - Download config files here
- Thaumcraft
- Yung's Better Mineshafts
These mods are known to cause issues:
- Galacticraft - Sky/Fog visual features will be disabled when this is installed.
- Muon - This mod is incompatible.
- Cave Generator - If you are experiencing tick/entity lag, please disable all biome replacement options to improve performance.
Add-ons
Modern Beta supports custom add-ons. Here are a few:
- Modern Beta Forge Release Plus - Adds biome generators from late Beta to early Release versions of Minecraft.
- Modern Beta Forge Islands - Adds island generation for several terrain generators.
- Modern Beta Forge Rivers - Adds river generation for several terrain generators.
- Modern Beta Forge Voronoi Climates - Adds biome generation with customizable biome maps and a visual editor.
Preset Note
For accurate generation for non-Beta chunk sources, please select from the built-in presets first; simply changing the chunk source will not accordingly update the needed noise settings.
Why no Forge version for current versions of Minecraft?
I have no plans on working on current versions of Minecraft at the moment. Please take a look at Moderner Beta for an alternative!
Credits
Thanks to mrburgerUS, SuperCoder7979, Arenovas, Amb0s, PaulEvs, comp500, and the folks behind RetroMCP.
Ченджлог
1.12.2-1.9.5.1Релиз1.12.2 · 2 июля 2026 г.
- Add additional compatibility with Future MC. Use that mod's configuration to adjust generation behavior.
- Add lily of the valley flowers to Beta Forests.
- Add cornflowers to Beta Plains.
- Add sweet berry bushes to Beta Taigas.
- Add bamboo to Beta Rainforests.
- Add bee nest generation for regular and fancy oak trees in Modern Beta biomes.
- Replace vanilla tab buttons in world customization screen with new custom tab buttons.
- Fix GUI bugs.
1.12.2-1.9.5.0Релиз1.12.2 · 18 мая 2026 г.
- Update change list screen. Settings that are disabled in the customization screen (and thus not relevant) will be greyed out, and a button to sort by enabled entries has been added.
- Add debug config option to toggle displaying generation info in the map preview screen.
- Adjust default cloud height for worlds with atypical world heights.
- Fix map preview structure and surface builder rendering bugs.
Technical Changes
- Update generator JSON string format. Settings are now ordered to reflect their order in the customization screen.
- Add default method
replacesDefaultBlocktoSurfaceBuilder, to indicate whether the surface builder can replace thedefaultBlock. This is mostly to indicate to the map previewer that the vanilla surface builder cannot replace non-Stone blocks.
1.12.2-1.9.4.0Релиз1.12.2 · 2 мая 2026 г.
- Add new Biomes O' Plenty biome source, active when BoP is installed. This biome source is a port of the biome generator from the BoP world type and should be used with the Release/vanilla chunk source. Expect biome distribution to be the same but terrain generation to be somewhat different. BoP world type options related to land mass, biome size, temperature variation, and rainfall variation are available under the Add-on tab.
- Add Biomes O' Plenty world preset to quickly use the new Biomes O' Plenty biome source with default Release chunk source settings.
- Add
riverDepthWeightgenerator setting which adds additional depth to river biomes when using the Release chunk source. WhenriverDepthWeightis greater than 1.0, the likelihood of rivers generating with constrictions will be reduced. - Add additional noise scale settings for biome replacement options for BoP, BuildCraft Energy, and Thaumcraft compatibility add-ons.
- Optimize Release chunk source.
- Improve world customization GUI.
- Improve map previewer; map preview will show more accurate biome colors for certain vanilla and BoP biomes.
- Update lang file.
1.12.2-1.9.3.1Релиз1.12.2 · 10 апреля 2026 г.
- Fix server crash.
1.12.2-1.9.3.0Релиз1.12.2 · 4 апреля 2026 г.
- Add new generator setting
useTerrainCoordFixfor Beta/PE terrain generator, which fixes chunk border artifacts due to incorrect sampling of x/z block coordinates during terrain generation. For example, this artifacting is most visible around 280/40 on the "Glacier" seed when using default Beta generator settings. - Fix critical bug where Infdev 611 worlds would not generate as intended. This issue has been present since 1.9.0.0; if you have made an Infdev 611 world since then, please use an NBT editor or the in-game
modernbetaforge:setgeneratorsettingcommand to set the chunk source tomodernbetaforge:alphato ensure contiguous terrain generation. - Fix scale noise settings for End terrain generator being modifiable in world customization screen despite having no effect on generation.
1.12.2-1.9.2.3Релиз1.12.2 · 31 марта 2026 г.
- Add a new button to map preview screen that saves generated previews to the screenshot folder.
- Add a new button to map preview screen that sets the world seed field when one has not been set in the world creation screen.
- Update map preview screen to cancel preview generation more gracefully.
- Update world customization screen to handle setting randomization more gracefully.
- Update destination directory and filename for the
drawmapcommand.
1.12.2-1.9.2.2Релиз1.12.2 · 16 марта 2026 г.
- Update map preview rendering.
- Improve cave carver compatibility with biome mods.
- Fix old sugar cane color config setting not properly applying.
1.12.2-1.9.2.1Релиз1.12.2 · 24 февраля 2026 г.
- Adjust changelist screen behavior.
- Fix GUI bugs.
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